78102000024 has 32 divisors (see below), whose sum is σ = 195844914240. Its totient is φ = 25955344800.

The previous prime is 78102000023. The next prime is 78102000037. The reversal of 78102000024 is 42000020187.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 78101999958 and 78102000003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78102000023) 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, 4907842 + ... + 4923729.

It is an arithmetic number, because the mean of its divisors is an integer number (6120153570).

Almost surely, 2^78102000024 is an apocalyptic number.

It is an amenable number.

78102000024 is an abundant number, since it is smaller than the sum of its proper divisors (117742914216).

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

78102000024 is a wasteful number, since it uses less digits than its factorization.

78102000024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9831911 (or 9831907 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 24.

The spelling of 78102000024 in words is "seventy-eight billion, one hundred two million, twenty-four", and thus it is an aban number.