78475937874 has 16 divisors (see below), whose sum is σ = 157859114112. Its totient is φ = 26007439568.

The previous prime is 78475937821. The next prime is 78475937887. The reversal of 78475937874 is 47873957487.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 78475937799 and 78475937808.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37800474 + ... + 37802549.

It is an arithmetic number, because the mean of its divisors is an integer number (9866194632).

Almost surely, 2^78475937874 is an apocalyptic number.

78475937874 is an abundant number, since it is smaller than the sum of its proper divisors (79383176238).

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

78475937874 is a wasteful number, since it uses less digits than its factorization.

78475937874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75603201.

The product of its digits is 331914240, while the sum is 69.

The spelling of 78475937874 in words is "seventy-eight billion, four hundred seventy-five million, nine hundred thirty-seven thousand, eight hundred seventy-four".