80965403904 has 144 divisors (see below), whose sum is σ = 268658127360. Its totient is φ = 21029959680.

The previous prime is 80965403839. The next prime is 80965403921. The reversal of 80965403904 is 40930456908.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 625434 + ... + 743705.

It is an arithmetic number, because the mean of its divisors is an integer number (1865681440).

Almost surely, 2^80965403904 is an apocalyptic number.

80965403904 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

80965403904 is an abundant number, since it is smaller than the sum of its proper divisors (187692723456).

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

80965403904 is a wasteful number, since it uses less digits than its factorization.

80965403904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1369176 (or 1369162 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 48.

The spelling of 80965403904 in words is "eighty billion, nine hundred sixty-five million, four hundred three thousand, nine hundred four".