3638875001399 has 6 divisors (see below), whose sum is σ = 3999755166960. Its totient is φ = 3308068182980.

The previous prime is 3638875001387. The next prime is 3638875001417. The reversal of 3638875001399 is 9931005788363.

It is not a de Polignac number, because 3638875001399 - 2¹⁶ = 3638874935863 is a prime.

It is a super-2 number, since 2×3638875001399² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3638875001369) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15036673439 + ... + 15036673680.

It is an arithmetic number, because the mean of its divisors is an integer number (666625861160).

Almost surely, 2^{3638875001399} is an apocalyptic number.

3638875001399 is a deficient number, since it is larger than the sum of its proper divisors (360880165561).

3638875001399 is a wasteful number, since it uses less digits than its factorization.

3638875001399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30073347141 (or 30073347130 counting only the distinct ones).

The product of its (nonzero) digits is 29393280, while the sum is 62.

The spelling of 3638875001399 in words is "three trillion, six hundred thirty-eight billion, eight hundred seventy-five million, one thousand, three hundred ninety-nine".