38490173740 has 24 divisors (see below), whose sum is σ = 81570923280. Its totient is φ = 15254820288.

The previous prime is 38490173719. The next prime is 38490173767. The reversal of 38490173740 is 4737109483.

It is an unprimeable number.

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, 8825842 + ... + 8830201.

It is an arithmetic number, because the mean of its divisors is an integer number (3398788470).

Almost surely, 2^38490173740 is an apocalyptic number.

It is an amenable number.

38490173740 is an abundant number, since it is smaller than the sum of its proper divisors (43080749540).

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

38490173740 is a wasteful number, since it uses less digits than its factorization.

38490173740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17656161 (or 17656159 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 46.

The spelling of 38490173740 in words is "thirty-eight billion, four hundred ninety million, one hundred seventy-three thousand, seven hundred forty".