474767792138 has 4 divisors (see below), whose sum is σ = 712151688210. Its totient is φ = 237383896068.

The previous prime is 474767792131. The next prime is 474767792141. The reversal of 474767792138 is 831297767474.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 429395810089 + 45371982049 = 655283^2 + 213007^2 .

It is a super-2 number, since 2×474767792138² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (474767792131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 118691948033 + ... + 118691948036.

Almost surely, 2^474767792138 is an apocalyptic number.

474767792138 is a deficient number, since it is larger than the sum of its proper divisors (237383896072).

474767792138 is a wasteful number, since it uses less digits than its factorization.

474767792138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237383896071.

The product of its digits is 99574272, while the sum is 65.

The spelling of 474767792138 in words is "four hundred seventy-four billion, seven hundred sixty-seven million, seven hundred ninety-two thousand, one hundred thirty-eight".