6457357512 has 96 divisors (see below), whose sum is σ = 18147238200. Its totient is φ = 2072604672.

The previous prime is 6457357481. The next prime is 6457357519. The reversal of 6457357512 is 2157537546.

It is a happy number.

6457357512 is a `hidden beast` number, since 6 + 4 + 5 + 73 + 575 + 1 + 2 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 6271689636 + 185667876 = 79194^2 + 13626^2 .

It is not an unprimeable number, because it can be changed into a prime (6457357519) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 245914 + ... + 270902.

Almost surely, 2^6457357512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6457357512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9073619100).

6457357512 is an abundant number, since it is smaller than the sum of its proper divisors (11689880688).

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

6457357512 is a wasteful number, since it uses less digits than its factorization.

6457357512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25135 (or 25128 counting only the distinct ones).

The product of its digits is 882000, while the sum is 45.

The square root of 6457357512 is about 80357.6848347437. The cubic root of 6457357512 is about 1862.1655041957.

The spelling of 6457357512 in words is "six billion, four hundred fifty-seven million, three hundred fifty-seven thousand, five hundred twelve".