61334913444 has 48 divisors (see below), whose sum is σ = 163901337600. Its totient is φ = 17487664416.

The previous prime is 61334913439. The next prime is 61334913461. The reversal of 61334913444 is 44431943316.

It is a super-2 number, since 2×61334913444² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 61334913396 and 61334913405.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 721954 + ... + 802425.

It is an arithmetic number, because the mean of its divisors is an integer number (3414611200).

Almost surely, 2^61334913444 is an apocalyptic number.

It is an amenable number.

61334913444 is an abundant number, since it is smaller than the sum of its proper divisors (102566424156).

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

61334913444 is a wasteful number, since it uses less digits than its factorization.

61334913444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1524872 (or 1524870 counting only the distinct ones).

The product of its digits is 373248, while the sum is 42.

The spelling of 61334913444 in words is "sixty-one billion, three hundred thirty-four million, nine hundred thirteen thousand, four hundred forty-four".