39638068488 has 24 divisors (see below), whose sum is σ = 107353102350. Its totient is φ = 13212689472.

The previous prime is 39638068453. The next prime is 39638068517. The reversal of 39638068488 is 88486083693.

39638068488 is a `hidden beast` number, since 3 + 96 + 3 + 8 + 0 + 68 + 488 = 666.

It can be written as a sum of positive squares in only one way, i.e., 22721944644 + 16916123844 = 150738^2 + 130062^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×39638068488² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 275264293 + ... + 275264436.

Almost surely, 2^39638068488 is an apocalyptic number.

It is an amenable number.

39638068488 is an abundant number, since it is smaller than the sum of its proper divisors (67715033862).

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

39638068488 is a wasteful number, since it uses less digits than its factorization.

39638068488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550528741 (or 550528734 counting only the distinct ones).

The product of its (nonzero) digits is 47775744, while the sum is 63.

The spelling of 39638068488 in words is "thirty-nine billion, six hundred thirty-eight million, sixty-eight thousand, four hundred eighty-eight".