38791998249 has 8 divisors (see below), whose sum is σ = 51745774080. Its totient is φ = 25849777296.

The previous prime is 38791998241. The next prime is 38791998251. The reversal of 38791998249 is 94289919783.

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

It is not a de Polignac number, because 38791998249 - 2³ = 38791998241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38791998241) 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, 2880882 + ... + 2894315.

It is an arithmetic number, because the mean of its divisors is an integer number (6468221760).

Almost surely, 2^38791998249 is an apocalyptic number.

It is an amenable number.

38791998249 is a deficient number, since it is larger than the sum of its proper divisors (12953775831).

38791998249 is a wasteful number, since it uses less digits than its factorization.

38791998249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5777439.

The product of its digits is 70543872, while the sum is 69.

The spelling of 38791998249 in words is "thirty-eight billion, seven hundred ninety-one million, nine hundred ninety-eight thousand, two hundred forty-nine".