638200001375 has 16 divisors (see below), whose sum is σ = 796648711872. Its totient is φ = 510447751200.

The previous prime is 638200001359. The next prime is 638200001393. The reversal of 638200001375 is 573100002836.

It is not a de Polignac number, because 638200001375 - 2⁴ = 638200001359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11909 + ... + 1129841.

It is an arithmetic number, because the mean of its divisors is an integer number (49790544492).

Almost surely, 2^638200001375 is an apocalyptic number.

638200001375 is a deficient number, since it is larger than the sum of its proper divisors (158448710497).

638200001375 is a wasteful number, since it uses less digits than its factorization.

638200001375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1122515 (or 1122505 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 35.

The spelling of 638200001375 in words is "six hundred thirty-eight billion, two hundred million, one thousand, three hundred seventy-five".