78538110635602 has 16 divisors (see below), whose sum is σ = 119022074730720. Its totient is φ = 38864088459648.

The previous prime is 78538110635581. The next prime is 78538110635639. The reversal of 78538110635602 is 20653601183587.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83688049 + ... + 84621307.

It is an arithmetic number, because the mean of its divisors is an integer number (7438879670670).

Almost surely, 2^{78538110635602} is an apocalyptic number.

78538110635602 is a deficient number, since it is larger than the sum of its proper divisors (40483964095118).

78538110635602 is a wasteful number, since it uses less digits than its factorization.

78538110635602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1367145.

The product of its (nonzero) digits is 7257600, while the sum is 55.

The spelling of 78538110635602 in words is "seventy-eight trillion, five hundred thirty-eight billion, one hundred ten million, six hundred thirty-five thousand, six hundred two".