78802042830 has 64 divisors (see below), whose sum is σ = 218162833920. Its totient is φ = 17843554944.

The previous prime is 78802042819. The next prime is 78802042901. The reversal of 78802042830 is 3824020887.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1731025 + ... + 1775964.

It is an arithmetic number, because the mean of its divisors is an integer number (3408794280).

Almost surely, 2^78802042830 is an apocalyptic number.

78802042830 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

78802042830 is an abundant number, since it is smaller than the sum of its proper divisors (139360791090).

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

78802042830 is a wasteful number, since it uses less digits than its factorization.

78802042830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3507113.

The product of its (nonzero) digits is 172032, while the sum is 42.

The spelling of 78802042830 in words is "seventy-eight billion, eight hundred two million, forty-two thousand, eight hundred thirty".