38891525289 has 8 divisors (see below), whose sum is σ = 52145062560. Its totient is φ = 25782835776.

The previous prime is 38891525279. The next prime is 38891525303. The reversal of 38891525289 is 98252519883.

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

It is not a de Polignac number, because 38891525289 - 2⁴ = 38891525273 is a prime.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (38891525279) 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, 36211312 + ... + 36212385.

It is an arithmetic number, because the mean of its divisors is an integer number (6518132820).

Almost surely, 2^38891525289 is an apocalyptic number.

It is an amenable number.

38891525289 is a deficient number, since it is larger than the sum of its proper divisors (13253537271).

38891525289 is a wasteful number, since it uses less digits than its factorization.

38891525289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72423879.

The product of its digits is 12441600, while the sum is 60.

The spelling of 38891525289 in words is "thirty-eight billion, eight hundred ninety-one million, five hundred twenty-five thousand, two hundred eighty-nine".