78887758074 has 16 divisors (see below), whose sum is σ = 157881210912. Its totient is φ = 26278303568.

The previous prime is 78887758067. The next prime is 78887758087. The reversal of 78887758074 is 47085778887.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4394244 + ... + 4412159.

It is an arithmetic number, because the mean of its divisors is an integer number (9867575682).

Almost surely, 2^78887758074 is an apocalyptic number.

78887758074 is an abundant number, since it is smaller than the sum of its proper divisors (78993452838).

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

78887758074 is a wasteful number, since it uses less digits than its factorization.

78887758074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8807901.

The product of its (nonzero) digits is 196689920, while the sum is 69.

It can be divided in two parts, 788877 and 58074, that added together give a triangular number (846951 = T₁₃₀₁).

The spelling of 78887758074 in words is "seventy-eight billion, eight hundred eighty-seven million, seven hundred fifty-eight thousand, seventy-four".