172045463418 has 48 divisors (see below), whose sum is σ = 373807789056. Its totient is φ = 57188204640.

The previous prime is 172045463363. The next prime is 172045463437. The reversal of 172045463418 is 814364540271.

172045463418 is a `hidden beast` number, since 1 + 7 + 2 + 0 + 4 + 5 + 4 + 634 + 1 + 8 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33818071 + ... + 33823157.

It is an arithmetic number, because the mean of its divisors is an integer number (7787662272).

Almost surely, 2^172045463418 is an apocalyptic number.

172045463418 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

172045463418 is an abundant number, since it is smaller than the sum of its proper divisors (201762325638).

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

172045463418 is a wasteful number, since it uses less digits than its factorization.

172045463418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9979 (or 9976 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 45.

The spelling of 172045463418 in words is "one hundred seventy-two billion, forty-five million, four hundred sixty-three thousand, four hundred eighteen".