63926131696 has 80 divisors (see below), whose sum is σ = 150009416640. Its totient is φ = 25762590720.

The previous prime is 63926131669. The next prime is 63926131721. The reversal of 63926131696 is 69613162936.

It is a super-2 number, since 2×63926131696² (a number of 22 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 in 15 ways as a sum of consecutive naturals, for example, 2234410 + ... + 2262838.

It is an arithmetic number, because the mean of its divisors is an integer number (1875117708).

Almost surely, 2^63926131696 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63926131696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75004708320).

63926131696 is an abundant number, since it is smaller than the sum of its proper divisors (86083284944).

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

63926131696 is a wasteful number, since it uses less digits than its factorization.

63926131696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29642 (or 29636 counting only the distinct ones).

The product of its digits is 1889568, while the sum is 52.

The spelling of 63926131696 in words is "sixty-three billion, nine hundred twenty-six million, one hundred thirty-one thousand, six hundred ninety-six".