80857912608 has 384 divisors, whose sum is σ = 262852128000. Its totient is φ = 23977451520.

The previous prime is 80857912601. The next prime is 80857912643. The reversal of 80857912608 is 80621975808.

80857912608 is a `hidden beast` number, since 8 + 0 + 8 + 579 + 1 + 2 + 60 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (80857912601) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 92197866 + ... + 92198742.

It is an arithmetic number, because the mean of its divisors is an integer number (684510750).

Almost surely, 2^80857912608 is an apocalyptic number.

80857912608 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80857912608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131426064000).

80857912608 is an abundant number, since it is smaller than the sum of its proper divisors (181994215392).

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

80857912608 is a wasteful number, since it uses less digits than its factorization.

80857912608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1105 (or 1091 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 54.

The spelling of 80857912608 in words is "eighty billion, eight hundred fifty-seven million, nine hundred twelve thousand, six hundred eight".