80654879632 has 10 divisors (see below), whose sum is σ = 156268829318. Its totient is φ = 40327439808.

The previous prime is 80654879623. The next prime is 80654879651. The reversal of 80654879632 is 23697845608.

It can be written as a sum of positive squares in only one way, i.e., 50599803136 + 30055076496 = 224944^2 + 173364^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2520464973 + ... + 2520465004.

Almost surely, 2^80654879632 is an apocalyptic number.

It is an amenable number.

80654879632 is a deficient number, since it is larger than the sum of its proper divisors (75613949686).

80654879632 is a wasteful number, since it uses less digits than its factorization.

80654879632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5040929985 (or 5040929979 counting only the distinct ones).

The product of its (nonzero) digits is 17418240, while the sum is 58.

The spelling of 80654879632 in words is "eighty billion, six hundred fifty-four million, eight hundred seventy-nine thousand, six hundred thirty-two".