618455964 has 48 divisors (see below), whose sum is σ = 1662230528. Its totient is φ = 175307328.

The previous prime is 618455953. The next prime is 618455977. The reversal of 618455964 is 469554816.

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, 18319 + ... + 39654.

Almost surely, 2^618455964 is an apocalyptic number.

It is an amenable number.

618455964 is an abundant number, since it is smaller than the sum of its proper divisors (1043774564).

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

618455964 is a wasteful number, since it uses less digits than its factorization.

618455964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58114 (or 58112 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 48.

The square root of 618455964 is about 24868.7748793542. The cubic root of 618455964 is about 851.9934591400.

The spelling of 618455964 in words is "six hundred eighteen million, four hundred fifty-five thousand, nine hundred sixty-four".