80519812 has 6 divisors (see below), whose sum is σ = 140909678. Its totient is φ = 40259904.

The previous prime is 80519801. The next prime is 80519821. The reversal of 80519812 is 21891508.

It can be written as a sum of positive squares in only one way, i.e., 73034116 + 7485696 = 8546^2 + 2736^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10064973 + ... + 10064980.

Almost surely, 2^80519812 is an apocalyptic number.

It is an amenable number.

80519812 is a deficient number, since it is larger than the sum of its proper divisors (60389866).

80519812 is a wasteful number, since it uses less digits than its factorization.

80519812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20129957 (or 20129955 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 34.

The square root of 80519812 is about 8973.2832341345. The cubic root of 80519812 is about 431.8181747966.

The spelling of 80519812 in words is "eighty million, five hundred nineteen thousand, eight hundred twelve".