78099472486 has 32 divisors (see below), whose sum is σ = 137531750400. Its totient is φ = 32565528576.

The previous prime is 78099472471. The next prime is 78099472537. The reversal of 78099472486 is 68427499087.

It is a Smith number, since the sum of its digits (64) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97686 + ... + 407113.

It is an arithmetic number, because the mean of its divisors is an integer number (4297867200).

Almost surely, 2^78099472486 is an apocalyptic number.

78099472486 is a deficient number, since it is larger than the sum of its proper divisors (59432277914).

78099472486 is a wasteful number, since it uses less digits than its factorization.

78099472486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505108.

The product of its (nonzero) digits is 48771072, while the sum is 64.

The spelling of 78099472486 in words is "seventy-eight billion, ninety-nine million, four hundred seventy-two thousand, four hundred eighty-six".