461731871522 has 4 divisors (see below), whose sum is σ = 692597807286. Its totient is φ = 230865935760.

The previous prime is 461731871509. The next prime is 461731871567. The reversal of 461731871522 is 225178137164.

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., 461694429361 + 37442161 = 679481^2 + 6119^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115432967879 + ... + 115432967882.

Almost surely, 2^461731871522 is an apocalyptic number.

461731871522 is a deficient number, since it is larger than the sum of its proper divisors (230865935764).

461731871522 is a wasteful number, since it uses less digits than its factorization.

461731871522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230865935763.

The product of its digits is 564480, while the sum is 47.

The spelling of 461731871522 in words is "four hundred sixty-one billion, seven hundred thirty-one million, eight hundred seventy-one thousand, five hundred twenty-two".