523501323626464 has 12 divisors (see below), whose sum is σ = 1030643230889664. Its totient is φ = 261750661813216.

The previous prime is 523501323626441. The next prime is 523501323626539. The reversal of 523501323626464 is 464626323105325.

It is a happy number.

It is a super-2 number, since 2×523501323626464² (a number of 30 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 as a sum of consecutive naturals, namely, 8179708181632 + ... + 8179708181695.

It is an arithmetic number, because the mean of its divisors is an integer number (85886935907472).

Almost surely, 2^{523501323626464} is an apocalyptic number.

It is an amenable number.

523501323626464 is a deficient number, since it is larger than the sum of its proper divisors (507141907263200).

523501323626464 is a wasteful number, since it uses less digits than its factorization.

523501323626464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16359416363337 (or 16359416363329 counting only the distinct ones).

The product of its (nonzero) digits is 18662400, while the sum is 52.

The spelling of 523501323626464 in words is "five hundred twenty-three trillion, five hundred one billion, three hundred twenty-three million, six hundred twenty-six thousand, four hundred sixty-four".