80521968 has 40 divisors (see below), whose sum is σ = 208915200. Its totient is φ = 26724544.

The previous prime is 80521963. The next prime is 80521997. The reversal of 80521968 is 86912508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80521963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7963 + ... + 14981.

It is an arithmetic number, because the mean of its divisors is an integer number (5222880).

Almost surely, 2^80521968 is an apocalyptic number.

It is an amenable number.

80521968 is an abundant number, since it is smaller than the sum of its proper divisors (128393232).

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

80521968 is a wasteful number, since it uses less digits than its factorization.

80521968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7269 (or 7263 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 39.

The square root of 80521968 is about 8973.4033677307. The cubic root of 80521968 is about 431.8220288861.

The spelling of 80521968 in words is "eighty million, five hundred twenty-one thousand, nine hundred sixty-eight".