618479397954 has 48 divisors (see below), whose sum is σ = 1463781724704. Its totient is φ = 187171675200.

The previous prime is 618479397859. The next prime is 618479397973. The reversal of 618479397954 is 459793974816.

618479397954 is a `hidden beast` number, since 6 + 1 + 8 + 479 + 39 + 79 + 54 = 666.

It is a super-2 number, since 2×618479397954² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1901644 + ... + 2202999.

It is an arithmetic number, because the mean of its divisors is an integer number (30495452598).

Almost surely, 2^618479397954 is an apocalyptic number.

618479397954 is an abundant number, since it is smaller than the sum of its proper divisors (845302326750).

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

618479397954 is a wasteful number, since it uses less digits than its factorization.

618479397954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4105423 (or 4105420 counting only the distinct ones).

The product of its digits is 411505920, while the sum is 72.

The spelling of 618479397954 in words is "six hundred eighteen billion, four hundred seventy-nine million, three hundred ninety-seven thousand, nine hundred fifty-four".