63115685488 has 20 divisors (see below), whose sum is σ = 122309839080. Its totient is φ = 31551856064.

The previous prime is 63115685467. The next prime is 63115685489. The reversal of 63115685488 is 88458651136.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63115685489) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 286570 + ... + 456457.

It is an arithmetic number, because the mean of its divisors is an integer number (6115491954).

Almost surely, 2^63115685488 is an apocalyptic number.

It is an amenable number.

63115685488 is a deficient number, since it is larger than the sum of its proper divisors (59194153592).

63115685488 is a wasteful number, since it uses less digits than its factorization.

63115685488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 748344 (or 748338 counting only the distinct ones).

The product of its digits is 5529600, while the sum is 55.

The spelling of 63115685488 in words is "sixty-three billion, one hundred fifteen million, six hundred eighty-five thousand, four hundred eighty-eight".