80543845372 has 12 divisors (see below), whose sum is σ = 140954469040. Its totient is φ = 40271139936.

The previous prime is 80543845363. The next prime is 80543845373. The reversal of 80543845372 is 27354834508.

It is a super-2 number, since 2×80543845372² (a number of 23 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80543845373) 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, 78529 + ... + 408967.

Almost surely, 2^80543845372 is an apocalyptic number.

It is an amenable number.

80543845372 is a deficient number, since it is larger than the sum of its proper divisors (60410623668).

80543845372 is a wasteful number, since it uses less digits than its factorization.

80543845372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391380 (or 391378 counting only the distinct ones).

The product of its (nonzero) digits is 3225600, while the sum is 49.

The spelling of 80543845372 in words is "eighty billion, five hundred forty-three million, eight hundred forty-five thousand, three hundred seventy-two".