63708077936 has 40 divisors (see below), whose sum is σ = 129027110784. Its totient is φ = 30415619520.

The previous prime is 63708077921. The next prime is 63708077947. The reversal of 63708077936 is 63977080736.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58535 + ... + 361721.

Almost surely, 2^63708077936 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 63708077936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64513555392).

63708077936 is an abundant number, since it is smaller than the sum of its proper divisors (65319032848).

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

63708077936 is a wasteful number, since it uses less digits than its factorization.

63708077936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303789 (or 303783 counting only the distinct ones).

The product of its (nonzero) digits is 8001504, while the sum is 56.

The spelling of 63708077936 in words is "sixty-three billion, seven hundred eight million, seventy-seven thousand, nine hundred thirty-six".