78506882654807 has 16 divisors (see below), whose sum is σ = 84420962828352. Its totient is φ = 72739898327040.

The previous prime is 78506882654797. The next prime is 78506882654833. The reversal of 78506882654807 is 70845628860587.

It is a happy number.

It is not a de Polignac number, because 78506882654807 - 2⁴ = 78506882654791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78506882654857) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47510858 + ... + 49135479.

It is an arithmetic number, because the mean of its divisors is an integer number (5276310176772).

Almost surely, 2^{78506882654807} is an apocalyptic number.

78506882654807 is a deficient number, since it is larger than the sum of its proper divisors (5914080173545).

78506882654807 is a wasteful number, since it uses less digits than its factorization.

78506882654807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96647098.

The product of its (nonzero) digits is 1445068800, while the sum is 74.

The spelling of 78506882654807 in words is "seventy-eight trillion, five hundred six billion, eight hundred eighty-two million, six hundred fifty-four thousand, eight hundred seven".