80256900028 has 24 divisors (see below), whose sum is σ = 146572705440. Its totient is φ = 38379380160.

The previous prime is 80256900007. The next prime is 80256900043. The reversal of 80256900028 is 82000965208.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 855258 + ... + 944446.

It is an arithmetic number, because the mean of its divisors is an integer number (6107196060).

Almost surely, 2^80256900028 is an apocalyptic number.

It is an amenable number.

80256900028 is a deficient number, since it is larger than the sum of its proper divisors (66315805412).

80256900028 is a wasteful number, since it uses less digits than its factorization.

80256900028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98997 (or 98995 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 40.

The spelling of 80256900028 in words is "eighty billion, two hundred fifty-six million, nine hundred thousand, twenty-eight".