638614054675 has 12 divisors (see below), whose sum is σ = 792778263160. Its totient is φ = 510312640320.

The previous prime is 638614054651. The next prime is 638614054679. The reversal of 638614054675 is 576450416836.

It is a happy number.

It is not a de Polignac number, because 638614054675 - 2⁹ = 638614054163 is a prime.

It is a super-3 number, since 3×638614054675³ (a number of 36 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (638614054679) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14442570 + ... + 14486719.

Almost surely, 2^638614054675 is an apocalyptic number.

638614054675 is a deficient number, since it is larger than the sum of its proper divisors (154164208485).

638614054675 is a wasteful number, since it uses less digits than its factorization.

638614054675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28930182 (or 28930177 counting only the distinct ones).

The product of its (nonzero) digits is 14515200, while the sum is 55.

The spelling of 638614054675 in words is "six hundred thirty-eight billion, six hundred fourteen million, fifty-four thousand, six hundred seventy-five".