617979614365 has 16 divisors (see below), whose sum is σ = 747047448576. Its totient is φ = 490748947200.

The previous prime is 617979614363. The next prime is 617979614407. The reversal of 617979614365 is 563416979716.

It is not a de Polignac number, because 617979614365 - 2¹ = 617979614363 is a prime.

It is a super-2 number, since 2×617979614365² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 617979614297 and 617979614306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (617979614363) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 449757 + ... + 1199266.

It is an arithmetic number, because the mean of its divisors is an integer number (46690465536).

Almost surely, 2^617979614365 is an apocalyptic number.

It is an amenable number.

617979614365 is a deficient number, since it is larger than the sum of its proper divisors (129067834211).

617979614365 is a wasteful number, since it uses less digits than its factorization.

617979614365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1649580.

The product of its digits is 51438240, while the sum is 64.

The spelling of 617979614365 in words is "six hundred seventeen billion, nine hundred seventy-nine million, six hundred fourteen thousand, three hundred sixty-five".