38731831490 has 32 divisors (see below), whose sum is σ = 76267163520. Its totient is φ = 14045056000.

The previous prime is 38731831471. The next prime is 38731831499. The reversal of 38731831490 is 9413813783.

It is not an unprimeable number, because it can be changed into a prime (38731831499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 450911 + ... + 529890.

It is an arithmetic number, because the mean of its divisors is an integer number (2383348860).

Almost surely, 2^38731831490 is an apocalyptic number.

38731831490 is a deficient number, since it is larger than the sum of its proper divisors (37535332030).

38731831490 is a wasteful number, since it uses less digits than its factorization.

38731831490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 981178.

The product of its (nonzero) digits is 435456, while the sum is 47.

The spelling of 38731831490 in words is "thirty-eight billion, seven hundred thirty-one million, eight hundred thirty-one thousand, four hundred ninety".