38925016491 has 8 divisors (see below), whose sum is σ = 52036962880. Its totient is φ = 25881540552.

The previous prime is 38925016489. The next prime is 38925016517. The reversal of 38925016491 is 19461052983.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 38925016491 - 2¹ = 38925016489 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38925016491.

It is not an unprimeable number, because it can be changed into a prime (38925016441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17116285 + ... + 17118558.

It is an arithmetic number, because the mean of its divisors is an integer number (6504620360).

Almost surely, 2^38925016491 is an apocalyptic number.

38925016491 is a deficient number, since it is larger than the sum of its proper divisors (13111946389).

38925016491 is a wasteful number, since it uses less digits than its factorization.

38925016491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34235225.

The product of its (nonzero) digits is 466560, while the sum is 48.

The spelling of 38925016491 in words is "thirty-eight billion, nine hundred twenty-five million, sixteen thousand, four hundred ninety-one".