472118635664 has 20 divisors (see below), whose sum is σ = 985093692156. Its totient is φ = 217900908672.

The previous prime is 472118635663. The next prime is 472118635673. The reversal of 472118635664 is 466536811274.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 156040800400 + 316077835264 = 395020^2 + 562208^2 .

It is a super-2 number, since 2×472118635664² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (472118635663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1134900359 + ... + 1134900774.

Almost surely, 2^472118635664 is an apocalyptic number.

It is an amenable number.

472118635664 is an abundant number, since it is smaller than the sum of its proper divisors (512975056492).

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

472118635664 is a wasteful number, since it uses less digits than its factorization.

472118635664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2269801154 (or 2269801148 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 53.

The spelling of 472118635664 in words is "four hundred seventy-two billion, one hundred eighteen million, six hundred thirty-five thousand, six hundred sixty-four".