80971405408 has 24 divisors (see below), whose sum is σ = 161203611240. Its totient is φ = 40030805760.

The previous prime is 80971405397. The next prime is 80971405409. The reversal of 80971405408 is 80450417908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80971405409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14212638 + ... + 14218333.

It is an arithmetic number, because the mean of its divisors is an integer number (6716817135).

Almost surely, 2^80971405408 is an apocalyptic number.

It is an amenable number.

80971405408 is a deficient number, since it is larger than the sum of its proper divisors (80232205832).

80971405408 is a wasteful number, since it uses less digits than its factorization.

80971405408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28431070 (or 28431062 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 46.

The spelling of 80971405408 in words is "eighty billion, nine hundred seventy-one million, four hundred five thousand, four hundred eight".