86728862376 has 80 divisors (see below), whose sum is σ = 261607384500. Its totient is φ = 26685801216.

The previous prime is 86728862333. The next prime is 86728862417. The reversal of 86728862376 is 67326882768.

It can be written as a sum of positive squares in 2 ways, for example, as 67980132900 + 18748729476 = 260730^2 + 136926^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5139301 + ... + 5156148.

Almost surely, 2^86728862376 is an apocalyptic number.

It is an amenable number.

86728862376 is an abundant number, since it is smaller than the sum of its proper divisors (174878522124).

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

86728862376 is a wasteful number, since it uses less digits than its factorization.

86728862376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10295480 (or 10295467 counting only the distinct ones).

The product of its digits is 65028096, while the sum is 63.

The spelling of 86728862376 in words is "eighty-six billion, seven hundred twenty-eight million, eight hundred sixty-two thousand, three hundred seventy-six".