38961688249 has 8 divisors (see below), whose sum is σ = 44740694880. Its totient is φ = 33555520800.

The previous prime is 38961688219. The next prime is 38961688253. The reversal of 38961688249 is 94288616983.

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

It is a cyclic number.

It is not a de Polignac number, because 38961688249 - 2⁵ = 38961688217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38961688219) 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, 93209572 + ... + 93209989.

It is an arithmetic number, because the mean of its divisors is an integer number (5592586860).

Almost surely, 2^38961688249 is an apocalyptic number.

It is an amenable number.

38961688249 is a deficient number, since it is larger than the sum of its proper divisors (5779006631).

38961688249 is a wasteful number, since it uses less digits than its factorization.

38961688249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186419591.

The product of its digits is 35831808, while the sum is 64.

The spelling of 38961688249 in words is "thirty-eight billion, nine hundred sixty-one million, six hundred eighty-eight thousand, two hundred forty-nine".