78108444722 has 16 divisors (see below), whose sum is σ = 146072935872. Its totient is φ = 30431861520.

The previous prime is 78108444707. The next prime is 78108444731. The reversal of 78108444722 is 22744480187.

It is a super-2 number, since 2×78108444722² (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, 253598693 + ... + 253599000.

It is an arithmetic number, because the mean of its divisors is an integer number (9129558492).

Almost surely, 2^78108444722 is an apocalyptic number.

78108444722 is a deficient number, since it is larger than the sum of its proper divisors (67964491150).

78108444722 is a wasteful number, since it uses less digits than its factorization.

78108444722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507197713.

The product of its (nonzero) digits is 802816, while the sum is 47.

The spelling of 78108444722 in words is "seventy-eight billion, one hundred eight million, four hundred forty-four thousand, seven hundred twenty-two".