2634061644 has 18 divisors (see below), whose sum is σ = 6658322580. Its totient is φ = 878020536.

The previous prime is 2634061631. The next prime is 2634061657. The reversal of 2634061644 is 4461604362.

2634061644 is a `hidden beast` number, since 2 + 6 + 3 + 4 + 0 + 6 + 1 + 644 = 666.

It is an interprime number because it is at equal distance from previous prime (2634061631) and next prime (2634061657).

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-3 number, since 3×2634061644³ (a number of 29 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 73168379 = 2634061644 / (2 + 6 + 3 + 4 + 0 + 6 + 1 + 6 + 4 + 4).

It is a junction number, because it is equal to n+sod(n) for n = 2634061599 and 2634061608.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 36584154 + ... + 36584225.

It is an arithmetic number, because the mean of its divisors is an integer number (369906810).

Almost surely, 2^2634061644 is an apocalyptic number.

It is an amenable number.

2634061644 is an abundant number, since it is smaller than the sum of its proper divisors (4024260936).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2634061644 is a wasteful number, since it uses less digits than its factorization.

2634061644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73168389 (or 73168384 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

The square root of 2634061644 is about 51323.1102331104. The cubic root of 2634061644 is about 1381.0475914402.

The spelling of 2634061644 in words is "two billion, six hundred thirty-four million, sixty-one thousand, six hundred forty-four".