80892476640 has 72 divisors (see below), whose sum is σ = 276045581448. Its totient is φ = 21571326720.

The previous prime is 80892476633. The next prime is 80892476659. The reversal of 80892476640 is 4667429808.

80892476640 is a `hidden beast` number, since 80 + 8 + 92 + 476 + 6 + 4 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28086226 + ... + 28089105.

It is an arithmetic number, because the mean of its divisors is an integer number (3833966409).

Almost surely, 2^80892476640 is an apocalyptic number.

80892476640 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

80892476640 is an abundant number, since it is smaller than the sum of its proper divisors (195153104808).

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

80892476640 is a wasteful number, since it uses less digits than its factorization.

80892476640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56175352 (or 56175341 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 54.

The spelling of 80892476640 in words is "eighty billion, eight hundred ninety-two million, four hundred seventy-six thousand, six hundred forty".