8257260464 has 20 divisors (see below), whose sum is σ = 16840466040. Its totient is φ = 3911333760.

The previous prime is 8257260457. The next prime is 8257260467. The reversal of 8257260464 is 4640627528.

It is a super-3 number, since 3×8257260464³ (a number of 31 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (8257260467) 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, 13580717 + ... + 13581324.

It is an arithmetic number, because the mean of its divisors is an integer number (842023302).

Almost surely, 2^8257260464 is an apocalyptic number.

It is an amenable number.

8257260464 is an abundant number, since it is smaller than the sum of its proper divisors (8583205576).

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

8257260464 is a wasteful number, since it uses less digits than its factorization.

8257260464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27162068 (or 27162062 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 44.

The square root of 8257260464 is about 90869.4693722815. The cubic root of 8257260464 is about 2021.2125895953.

The spelling of 8257260464 in words is "eight billion, two hundred fifty-seven million, two hundred sixty thousand, four hundred sixty-four".