63728696332 has 48 divisors (see below), whose sum is σ = 134176154112. Its totient is φ = 25893584640.

The previous prime is 63728696249. The next prime is 63728696333. The reversal of 63728696332 is 23369682736.

63728696332 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×63728696332² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (63728696333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 365094 + ... + 510637.

It is an arithmetic number, because the mean of its divisors is an integer number (2795336544).

Almost surely, 2^63728696332 is an apocalyptic number.

It is an amenable number.

63728696332 is an abundant number, since it is smaller than the sum of its proper divisors (70447457780).

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

63728696332 is a wasteful number, since it uses less digits than its factorization.

63728696332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 875878 (or 875876 counting only the distinct ones).

The product of its digits is 11757312, while the sum is 55.

The spelling of 63728696332 in words is "sixty-three billion, seven hundred twenty-eight million, six hundred ninety-six thousand, three hundred thirty-two".