80475836121 has 40 divisors (see below), whose sum is σ = 128822357664. Its totient is φ = 49886202240.

The previous prime is 80475836117. The next prime is 80475836149. The reversal of 80475836121 is 12163857408.

80475836121 is a `hidden beast` number, since 8 + 0 + 4 + 7 + 583 + 61 + 2 + 1 = 666.

It is not a de Polignac number, because 80475836121 - 2² = 80475836117 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80475836171) by changing a digit.

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 39 ways as a sum of consecutive naturals, for example, 237775 + ... + 466356.

Almost surely, 2^80475836121 is an apocalyptic number.

80475836121 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

It is an amenable number.

80475836121 is a deficient number, since it is larger than the sum of its proper divisors (48346521543).

80475836121 is a wasteful number, since it uses less digits than its factorization.

80475836121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 704243 (or 704234 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The spelling of 80475836121 in words is "eighty billion, four hundred seventy-five million, eight hundred thirty-six thousand, one hundred twenty-one".