102681265780 has 48 divisors (see below), whose sum is σ = 225084633984. Its totient is φ = 39272999040.

The previous prime is 102681265777. The next prime is 102681265789. The reversal of 102681265780 is 87562186201.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a self number, because there is not a number n which added to its sum of digits gives 102681265780.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102681265789) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1329094 + ... + 1404226.

It is an arithmetic number, because the mean of its divisors is an integer number (4689263208).

Almost surely, 2^102681265780 is an apocalyptic number.

102681265780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102681265780 is an abundant number, since it is smaller than the sum of its proper divisors (122403368204).

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

102681265780 is a wasteful number, since it uses less digits than its factorization.

102681265780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78136 (or 78134 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 46.

The spelling of 102681265780 in words is "one hundred two billion, six hundred eighty-one million, two hundred sixty-five thousand, seven hundred eighty".