78256382882 has 16 divisors (see below), whose sum is σ = 118413609912. Its totient is φ = 38786522880.

The previous prime is 78256382879. The next prime is 78256382899. The reversal of 78256382882 is 28828365287.

It can be written as a sum of positive squares in 4 ways, for example, as 60880134121 + 17376248761 = 246739^2 + 131819^2 .

It is a super-2 number, since 2×78256382882² (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, 218969 + ... + 452172.

Almost surely, 2^78256382882 is an apocalyptic number.

78256382882 is a deficient number, since it is larger than the sum of its proper divisors (40157227030).

78256382882 is a wasteful number, since it uses less digits than its factorization.

78256382882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671653.

The product of its digits is 20643840, while the sum is 59.

The spelling of 78256382882 in words is "seventy-eight billion, two hundred fifty-six million, three hundred eighty-two thousand, eight hundred eighty-two".