617098977664 has 64 divisors (see below), whose sum is σ = 1329219899280. Its totient is φ = 283680000000.

The previous prime is 617098977647. The next prime is 617098977667. The reversal of 617098977664 is 466779890716.

617098977664 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×617098977664² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 617098977593 and 617098977602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (617098977667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 321087 + ... + 1156414.

Almost surely, 2^617098977664 is an apocalyptic number.

617098977664 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

617098977664 is an abundant number, since it is smaller than the sum of its proper divisors (712120921616).

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

617098977664 is a wasteful number, since it uses less digits than its factorization.

617098977664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1477779 (or 1477767 counting only the distinct ones).

The product of its (nonzero) digits is 192036096, while the sum is 70.

The spelling of 617098977664 in words is "six hundred seventeen billion, ninety-eight million, nine hundred seventy-seven thousand, six hundred sixty-four".