80971405412 has 24 divisors (see below), whose sum is σ = 146846649600. Its totient is φ = 39020181536.

The previous prime is 80971405409. The next prime is 80971405453. The reversal of 80971405412 is 21450417908.

It is a self number, because there is not a number n which added to its sum of digits gives 80971405412.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 554612 + ... + 685227.

It is an arithmetic number, because the mean of its divisors is an integer number (6118610400).

Almost surely, 2^80971405412 is an apocalyptic number.

It is an amenable number.

80971405412 is a deficient number, since it is larger than the sum of its proper divisors (65875244188).

80971405412 is a wasteful number, since it uses less digits than its factorization.

80971405412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1240435 (or 1240433 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 41.

The spelling of 80971405412 in words is "eighty billion, nine hundred seventy-one million, four hundred five thousand, four hundred twelve".