63432426464 has 24 divisors (see below), whose sum is σ = 136235553048. Its totient is φ = 28832920960.

The previous prime is 63432426457. The next prime is 63432426493. The reversal of 63432426464 is 46462423436.

It is a super-2 number, since 2×63432426464² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90102527 + ... + 90103230.

It is an arithmetic number, because the mean of its divisors is an integer number (5676481377).

Almost surely, 2^63432426464 is an apocalyptic number.

It is an amenable number.

63432426464 is an abundant number, since it is smaller than the sum of its proper divisors (72803126584).

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

63432426464 is a wasteful number, since it uses less digits than its factorization.

63432426464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180205778 (or 180205770 counting only the distinct ones).

The product of its digits is 1990656, while the sum is 44.

The spelling of 63432426464 in words is "sixty-three billion, four hundred thirty-two million, four hundred twenty-six thousand, four hundred sixty-four".