38990625739 has 4 divisors (see below), whose sum is σ = 41989904656. Its totient is φ = 35991346824.

The previous prime is 38990625721. The next prime is 38990625787. The reversal of 38990625739 is 93752609983.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93752609983 = 58733 ⋅1596251.

It is a cyclic number.

It is not a de Polignac number, because 38990625739 - 2¹⁷ = 38990494667 is a prime.

It is a super-2 number, since 2×38990625739² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38990625799) 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 3 ways as a sum of consecutive naturals, for example, 1499639439 + ... + 1499639464.

It is an arithmetic number, because the mean of its divisors is an integer number (10497476164).

Almost surely, 2^38990625739 is an apocalyptic number.

38990625739 is a deficient number, since it is larger than the sum of its proper divisors (2999278917).

38990625739 is a wasteful number, since it uses less digits than its factorization.

38990625739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2999278916.

The product of its (nonzero) digits is 22044960, while the sum is 61.

The spelling of 38990625739 in words is "thirty-eight billion, nine hundred ninety million, six hundred twenty-five thousand, seven hundred thirty-nine".