8257864080 has 40 divisors (see below), whose sum is σ = 25599379392. Its totient is φ = 2202097024.

The previous prime is 8257864073. The next prime is 8257864169. The reversal of 8257864080 is 804687528.

It is a tau number, because it is divible by the number of its divisors (40).

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

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

It is an unprimeable number.

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, 17203644 + ... + 17204123.

Almost surely, 2^8257864080 is an apocalyptic number.

8257864080 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8257864080 is an abundant number, since it is smaller than the sum of its proper divisors (17341515312).

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

8257864080 is a wasteful number, since it uses less digits than its factorization.

8257864080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34407783 (or 34407777 counting only the distinct ones).

The product of its (nonzero) digits is 860160, while the sum is 48.

The square root of 8257864080 is about 90872.7906471459. The cubic root of 8257864080 is about 2021.2618394458.

The spelling of 8257864080 in words is "eight billion, two hundred fifty-seven million, eight hundred sixty-four thousand, eighty".