617131380320 has 96 divisors (see below), whose sum is σ = 1794428209728. Its totient is φ = 195311904768.

The previous prime is 617131380269. The next prime is 617131380331. The reversal of 617131380320 is 23083131716.

It is a super-2 number, since 2×617131380320² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21178139 + ... + 21207258.

It is an arithmetic number, because the mean of its divisors is an integer number (18691960518).

Almost surely, 2^617131380320 is an apocalyptic number.

It is an amenable number.

617131380320 is an abundant number, since it is smaller than the sum of its proper divisors (1177296829408).

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

617131380320 is a wasteful number, since it uses less digits than its factorization.

617131380320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42385432 (or 42385424 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 35.

The spelling of 617131380320 in words is "six hundred seventeen billion, one hundred thirty-one million, three hundred eighty thousand, three hundred twenty".