613457420256 has 72 divisors (see below), whose sum is σ = 1744659496944. Its totient is φ = 204469401600.

The previous prime is 613457420189. The next prime is 613457420357. The reversal of 613457420256 is 652024754316.

613457420256 is a `hidden beast` number, since 6 + 1 + 3 + 4 + 574 + 20 + 2 + 56 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3819981 + ... + 3977331.

It is an arithmetic number, because the mean of its divisors is an integer number (24231381902).

Almost surely, 2^613457420256 is an apocalyptic number.

It is an amenable number.

613457420256 is an abundant number, since it is smaller than the sum of its proper divisors (1131202076688).

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

613457420256 is a wasteful number, since it uses less digits than its factorization.

613457420256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170904 (or 170893 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 45.

The spelling of 613457420256 in words is "six hundred thirteen billion, four hundred fifty-seven million, four hundred twenty thousand, two hundred fifty-six".