474954451638 has 32 divisors (see below), whose sum is σ = 973558020960. Its totient is φ = 154380445440.

The previous prime is 474954451607. The next prime is 474954451651. The reversal of 474954451638 is 836154459474.

It is a super-2 number, since 2×474954451638² (a number of 24 digits) contains 22 as substring.

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, 23356 + ... + 974912.

It is an arithmetic number, because the mean of its divisors is an integer number (30423688155).

Almost surely, 2^474954451638 is an apocalyptic number.

474954451638 is an abundant number, since it is smaller than the sum of its proper divisors (498603569322).

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

474954451638 is a wasteful number, since it uses less digits than its factorization.

474954451638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 953632.

The product of its digits is 58060800, while the sum is 60.

The spelling of 474954451638 in words is "four hundred seventy-four billion, nine hundred fifty-four million, four hundred fifty-one thousand, six hundred thirty-eight".