63331309613 has 72 divisors (see below), whose sum is σ = 77105952000. Its totient is φ = 51943731840.

The previous prime is 63331309607. The next prime is 63331309709. The reversal of 63331309613 is 31690313336.

It is not a de Polignac number, because 63331309613 - 2¹⁰ = 63331308589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63331309313) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 318247688 + ... + 318247886.

It is an arithmetic number, because the mean of its divisors is an integer number (1070916000).

Almost surely, 2^63331309613 is an apocalyptic number.

It is an amenable number.

63331309613 is a deficient number, since it is larger than the sum of its proper divisors (13774642387).

63331309613 is a wasteful number, since it uses less digits than its factorization.

63331309613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 523 (or 499 counting only the distinct ones).

The product of its (nonzero) digits is 78732, while the sum is 38.

The spelling of 63331309613 in words is "sixty-three billion, three hundred thirty-one million, three hundred nine thousand, six hundred thirteen".