615313625472 has 960 divisors, whose sum is σ = 2312919433440. Its totient is φ = 160944537600.

The previous prime is 615313625453. The next prime is 615313625477. The reversal of 615313625472 is 274526313516.

615313625472 is a `hidden beast` number, since 6 + 1 + 5 + 3 + 13 + 625 + 4 + 7 + 2 = 666.

It is a super-2 number, since 2×615313625472² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (615313625477) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 997266508 + ... + 997267124.

Almost surely, 2^615313625472 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 615313625472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1156459716720).

615313625472 is an abundant number, since it is smaller than the sum of its proper divisors (1697605807968).

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

615313625472 is a wasteful number, since it uses less digits than its factorization.

615313625472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 821 (or 793 counting only the distinct ones).

The product of its digits is 907200, while the sum is 45.

Adding to 615313625472 its reverse (274526313516), we get a palindrome (889839938988).

The spelling of 615313625472 in words is "six hundred fifteen billion, three hundred thirteen million, six hundred twenty-five thousand, four hundred seventy-two".