78286198404 has 24 divisors (see below), whose sum is σ = 182677759488. Its totient is φ = 26093976160.

The previous prime is 78286198391. The next prime is 78286198429. The reversal of 78286198404 is 40489168287.

It is a super-2 number, since 2×78286198404² (a number of 23 digits) contains 22 as substring.

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, 64474 + ... + 400910.

It is an arithmetic number, because the mean of its divisors is an integer number (7611573312).

Almost surely, 2^78286198404 is an apocalyptic number.

It is an amenable number.

78286198404 is an abundant number, since it is smaller than the sum of its proper divisors (104391561084).

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

78286198404 is a wasteful number, since it uses less digits than its factorization.

78286198404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355835 (or 355833 counting only the distinct ones).

The product of its (nonzero) digits is 6193152, while the sum is 57.

The spelling of 78286198404 in words is "seventy-eight billion, two hundred eighty-six million, one hundred ninety-eight thousand, four hundred four".