523406774521612 has 6 divisors (see below), whose sum is σ = 915961855412828. Its totient is φ = 261703387260804.

The previous prime is 523406774521601. The next prime is 523406774521621. The reversal of 523406774521612 is 216125477604325.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65425846815198 + ... + 65425846815205.

Almost surely, 2^{523406774521612} is an apocalyptic number.

It is an amenable number.

523406774521612 is a deficient number, since it is larger than the sum of its proper divisors (392555080891216).

523406774521612 is a wasteful number, since it uses less digits than its factorization.

523406774521612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130851693630407 (or 130851693630405 counting only the distinct ones).

The product of its (nonzero) digits is 16934400, while the sum is 55.

The spelling of 523406774521612 in words is "five hundred twenty-three trillion, four hundred six billion, seven hundred seventy-four million, five hundred twenty-one thousand, six hundred twelve".