78717490204 has 12 divisors (see below), whose sum is σ = 137836225800. Its totient is φ = 39335711408.

The previous prime is 78717490193. The next prime is 78717490207. The reversal of 78717490204 is 40209471787.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78717490207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5750734 + ... + 5764405.

It is an arithmetic number, because the mean of its divisors is an integer number (11486352150).

Almost surely, 2^78717490204 is an apocalyptic number.

It is an amenable number.

78717490204 is a deficient number, since it is larger than the sum of its proper divisors (59118735596).

78717490204 is a wasteful number, since it uses less digits than its factorization.

78717490204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11516852 (or 11516850 counting only the distinct ones).

The product of its (nonzero) digits is 790272, while the sum is 49.

The spelling of 78717490204 in words is "seventy-eight billion, seven hundred seventeen million, four hundred ninety thousand, two hundred four".