638614054673 has 16 divisors (see below), whose sum is σ = 751440945024. Its totient is φ = 531321786240.

The previous prime is 638614054651. The next prime is 638614054679. The reversal of 638614054673 is 376450416836.

It is not a de Polignac number, because 638614054673 - 2²⁶ = 638546945809 is a prime.

It is a super-3 number, since 3×638614054673³ (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 pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5591015 + ... + 5704092.

It is an arithmetic number, because the mean of its divisors is an integer number (46965059064).

Almost surely, 2^638614054673 is an apocalyptic number.

It is an amenable number.

638614054673 is a deficient number, since it is larger than the sum of its proper divisors (112826890351).

638614054673 is a wasteful number, since it uses less digits than its factorization.

638614054673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11295352.

The product of its (nonzero) digits is 8709120, while the sum is 53.

The spelling of 638614054673 in words is "six hundred thirty-eight billion, six hundred fourteen million, fifty-four thousand, six hundred seventy-three".