38993258740 has 24 divisors (see below), whose sum is σ = 82022572800. Its totient is φ = 15571259808.

The previous prime is 38993258723. The next prime is 38993258743. The reversal of 38993258740 is 4785239983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38993258743) 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 7 ways as a sum of consecutive naturals, for example, 1615452 + ... + 1639411.

It is an arithmetic number, because the mean of its divisors is an integer number (3417607200).

Almost surely, 2^38993258740 is an apocalyptic number.

It is an amenable number.

38993258740 is an abundant number, since it is smaller than the sum of its proper divisors (43029314060).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38993258740 is a wasteful number, since it uses less digits than its factorization.

38993258740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3255471 (or 3255469 counting only the distinct ones).

The product of its (nonzero) digits is 13063680, while the sum is 58.

The spelling of 38993258740 in words is "thirty-eight billion, nine hundred ninety-three million, two hundred fifty-eight thousand, seven hundred forty".