80818512 has 20 divisors (see below), whose sum is σ = 208781280. Its totient is φ = 26939488.

The previous prime is 80818499. The next prime is 80818523. The reversal of 80818512 is 21581808.

It is a super-3 number, since 3×80818512³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 841812 + ... + 841907.

It is an arithmetic number, because the mean of its divisors is an integer number (10439064).

Almost surely, 2^80818512 is an apocalyptic number.

It is an amenable number.

80818512 is an abundant number, since it is smaller than the sum of its proper divisors (127962768).

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

80818512 is a wasteful number, since it uses less digits than its factorization.

80818512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1683730 (or 1683724 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 33.

The square root of 80818512 is about 8989.9116792102. The cubic root of 80818512 is about 432.3514800723.

The spelling of 80818512 in words is "eighty million, eight hundred eighteen thousand, five hundred twelve".