80457042820 has 96 divisors (see below), whose sum is σ = 213317959680. Its totient is φ = 24760045440.

The previous prime is 80457042779. The next prime is 80457042839. The reversal of 80457042820 is 2824075408.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 209004 + ... + 452323.

It is an arithmetic number, because the mean of its divisors is an integer number (2222062080).

Almost surely, 2^80457042820 is an apocalyptic number.

It is an amenable number.

80457042820 is an abundant number, since it is smaller than the sum of its proper divisors (132860916860).

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

80457042820 is a wasteful number, since it uses less digits than its factorization.

80457042820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661433 (or 661431 counting only the distinct ones).

The product of its (nonzero) digits is 143360, while the sum is 40.

The spelling of 80457042820 in words is "eighty billion, four hundred fifty-seven million, forty-two thousand, eight hundred twenty".