38949390736 has 15 divisors (see below), whose sum is σ = 75465974091. Its totient is φ = 19474300656.

The previous prime is 38949390721. The next prime is 38949390787. The reversal of 38949390736 is 63709394983.

The square root of 38949390736 is 197356.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 764755 + ... + 814093.

Almost surely, 2^38949390736 is an apocalyptic number.

38949390736 is the 197356-th square number.

It is an amenable number.

38949390736 is a deficient number, since it is larger than the sum of its proper divisors (36516583355).

38949390736 is an frugal number, since it uses more digits than its factorization.

38949390736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98686 (or 49341 counting only the distinct ones).

The product of its (nonzero) digits is 26453952, while the sum is 61.

The spelling of 38949390736 in words is "thirty-eight billion, nine hundred forty-nine million, three hundred ninety thousand, seven hundred thirty-six".