102749934652 has 24 divisors (see below), whose sum is σ = 184783815216. Its totient is φ = 49964815488.

The previous prime is 102749934631. The next prime is 102749934691. The reversal of 102749934652 is 256439947201.

It is a super-2 number, since 2×102749934652² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 102749934652.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1241863 + ... + 1322014.

It is an arithmetic number, because the mean of its divisors is an integer number (7699325634).

Almost surely, 2^102749934652 is an apocalyptic number.

It is an amenable number.

102749934652 is a deficient number, since it is larger than the sum of its proper divisors (82033880564).

102749934652 is a wasteful number, since it uses less digits than its factorization.

102749934652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2564157 (or 2564155 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 52.

The spelling of 102749934652 in words is "one hundred two billion, seven hundred forty-nine million, nine hundred thirty-four thousand, six hundred fifty-two".