2663526642 has 16 divisors (see below), whose sum is σ = 6088060992. Its totient is φ = 761007600.

The previous prime is 2663526641. The next prime is 2663526673. The reversal of 2663526642 is 2466253662.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 63417301 = 2663526642 / (2 + 6 + 6 + 3 + 5 + 2 + 6 + 6 + 4 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 2663526594 and 2663526603.

It is not an unprimeable number, because it can be changed into a prime (2663526641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31708609 + ... + 31708692.

It is an arithmetic number, because the mean of its divisors is an integer number (380503812).

Almost surely, 2^2663526642 is an apocalyptic number.

2663526642 is an abundant number, since it is smaller than the sum of its proper divisors (3424534350).

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

2663526642 is a wasteful number, since it uses less digits than its factorization.

2663526642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63417313.

The product of its digits is 622080, while the sum is 42.

The square root of 2663526642 is about 51609.3658360573. The cubic root of 2663526642 is about 1386.1780420487.

The spelling of 2663526642 in words is "two billion, six hundred sixty-three million, five hundred twenty-six thousand, six hundred forty-two".