63662379172 has 24 divisors (see below), whose sum is σ = 129923225600. Its totient is φ = 27283876200.

The previous prime is 63662379119. The next prime is 63662379173. The reversal of 63662379172 is 27197326636.

It is not an unprimeable number, because it can be changed into a prime (63662379173) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23199204 + ... + 23201947.

Almost surely, 2^63662379172 is an apocalyptic number.

It is an amenable number.

63662379172 is an abundant number, since it is smaller than the sum of its proper divisors (66260846428).

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

63662379172 is a wasteful number, since it uses less digits than its factorization.

63662379172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46401176 (or 46401160 counting only the distinct ones).

The product of its digits is 3429216, while the sum is 52.

The spelling of 63662379172 in words is "sixty-three billion, six hundred sixty-two million, three hundred seventy-nine thousand, one hundred seventy-two".