15217383117 has 8 divisors (see below), whose sum is σ = 20622464800. Its totient is φ = 9978611760.

The previous prime is 15217383079. The next prime is 15217383127. The reversal of 15217383117 is 71138371251.

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

It is not a de Polignac number, because 15217383117 - 2¹⁴ = 15217366733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15217383127) 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, 41577367 + ... + 41577732.

It is an arithmetic number, because the mean of its divisors is an integer number (2577808100).

Almost surely, 2^15217383117 is an apocalyptic number.

It is an amenable number.

15217383117 is a deficient number, since it is larger than the sum of its proper divisors (5405081683).

15217383117 is an equidigital number, since it uses as much as digits as its factorization.

15217383117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83155163.

The product of its digits is 35280, while the sum is 39.

The spelling of 15217383117 in words is "fifteen billion, two hundred seventeen million, three hundred eighty-three thousand, one hundred seventeen".