63998520002 has 32 divisors (see below), whose sum is σ = 102882830400. Its totient is φ = 29766528000.

The previous prime is 63998519987. The next prime is 63998520011. The reversal of 63998520002 is 20002589936.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1959002 + ... + 1991402.

It is an arithmetic number, because the mean of its divisors is an integer number (3215088450).

Almost surely, 2^63998520002 is an apocalyptic number.

63998520002 is a deficient number, since it is larger than the sum of its proper divisors (38884310398).

63998520002 is a wasteful number, since it uses less digits than its factorization.

63998520002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33362.

The product of its (nonzero) digits is 233280, while the sum is 44.

The spelling of 63998520002 in words is "sixty-three billion, nine hundred ninety-eight million, five hundred twenty thousand, two".