80897858560 has 44 divisors (see below), whose sum is σ = 194060070648. Its totient is φ = 32359141376.

The previous prime is 80897858557. The next prime is 80897858563. The reversal of 80897858560 is 6585879808.

It is an interprime number because it is at equal distance from previous prime (80897858557) and next prime (80897858563).

It is a Harshad number since it is a multiple of its sum of digits (64).

It is a junction number, because it is equal to n+sod(n) for n = 80897858492 and 80897858501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80897858563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7895062 + ... + 7905301.

Almost surely, 2^80897858560 is an apocalyptic number.

80897858560 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

80897858560 is an abundant number, since it is smaller than the sum of its proper divisors (113162212088).

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

80897858560 is a wasteful number, since it uses less digits than its factorization.

80897858560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15800388 (or 15800370 counting only the distinct ones).

The product of its (nonzero) digits is 38707200, while the sum is 64.

The spelling of 80897858560 in words is "eighty billion, eight hundred ninety-seven million, eight hundred fifty-eight thousand, five hundred sixty".