78785830026 has 24 divisors (see below), whose sum is σ = 170707798404. Its totient is φ = 26261148480.

The previous prime is 78785829977. The next prime is 78785830043. The reversal of 78785830026 is 62003858787.

It can be written as a sum of positive squares in 2 ways, for example, as 78567529401 + 218300625 = 280299^2 + 14775^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1098910 + ... + 1168406.

Almost surely, 2^78785830026 is an apocalyptic number.

78785830026 is an abundant number, since it is smaller than the sum of its proper divisors (91921968378).

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

78785830026 is a wasteful number, since it uses less digits than its factorization.

78785830026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132486 (or 132483 counting only the distinct ones).

The product of its (nonzero) digits is 4515840, while the sum is 54.

The spelling of 78785830026 in words is "seventy-eight billion, seven hundred eighty-five million, eight hundred thirty thousand, twenty-six".