80542279872 has 84 divisors (see below), whose sum is σ = 230955021960. Its totient is φ = 26836365312.

The previous prime is 80542279847. The next prime is 80542279877. The reversal of 80542279872 is 27897224508.

80542279872 is a `hidden beast` number, since 8 + 0 + 542 + 2 + 7 + 98 + 7 + 2 = 666.

It is a super-3 number, since 3×80542279872³ (a number of 34 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (80542279877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1434928 + ... + 1490000.

Almost surely, 2^80542279872 is an apocalyptic number.

It is an amenable number.

80542279872 is an abundant number, since it is smaller than the sum of its proper divisors (150412742088).

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

80542279872 is a wasteful number, since it uses less digits than its factorization.

80542279872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57630 (or 57617 counting only the distinct ones).

The product of its (nonzero) digits is 4515840, while the sum is 54.

The spelling of 80542279872 in words is "eighty billion, five hundred forty-two million, two hundred seventy-nine thousand, eight hundred seventy-two".