78334584976 has 30 divisors (see below), whose sum is σ = 156827133366. Its totient is φ = 37903824000.

The previous prime is 78334584973. The next prime is 78334584989. The reversal of 78334584976 is 67948543387.

It can be written as a sum of positive squares in only one way, i.e., 55448946576 + 22885638400 = 235476^2 + 151280^2 .

It is a super-2 number, since 2×78334584976² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78334584973) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2531925 + ... + 2562676.

Almost surely, 2^78334584976 is an apocalyptic number.

It is an amenable number.

78334584976 is an abundant number, since it is smaller than the sum of its proper divisors (78492548390).

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

78334584976 is a wasteful number, since it uses less digits than its factorization.

78334584976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5094671 (or 5094634 counting only the distinct ones).

The product of its digits is 121927680, while the sum is 64.

The spelling of 78334584976 in words is "seventy-eight billion, three hundred thirty-four million, five hundred eighty-four thousand, nine hundred seventy-six".