78875786623844 has 24 divisors (see below), whose sum is σ = 157752109374720. Its totient is φ = 33803793668736.

The previous prime is 78875786623817. The next prime is 78875786623859. The reversal of 78875786623844 is 44832668757887.

It is a Smith number, since the sum of its digits (83) coincides with the sum of the digits of its prime factors.

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, 3873989 + ... + 13143795.

It is an arithmetic number, because the mean of its divisors is an integer number (6573004557280).

Almost surely, 2^{78875786623844} is an apocalyptic number.

It is an amenable number.

78875786623844 is an abundant number, since it is smaller than the sum of its proper divisors (78876322750876).

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

78875786623844 is a wasteful number, since it uses less digits than its factorization.

78875786623844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9573707 (or 9573705 counting only the distinct ones).

The product of its digits is 24277155840, while the sum is 83.

The spelling of 78875786623844 in words is "seventy-eight trillion, eight hundred seventy-five billion, seven hundred eighty-six million, six hundred twenty-three thousand, eight hundred forty-four".