915340417231 has 4 divisors (see below), whose sum is σ = 915423618312. Its totient is φ = 915257216152.

The previous prime is 915340417217. The next prime is 915340417241. The reversal of 915340417231 is 132714043519.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 915340417231 - 2⁹ = 915340416719 is a prime.

It is a super-2 number, since 2×915340417231² (a number of 25 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (915340417241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41584036 + ... + 41606041.

It is an arithmetic number, because the mean of its divisors is an integer number (228855904578).

Almost surely, 2^915340417231 is an apocalyptic number.

915340417231 is a deficient number, since it is larger than the sum of its proper divisors (83201081).

915340417231 is a wasteful number, since it uses less digits than its factorization.

915340417231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83201080.

The product of its (nonzero) digits is 90720, while the sum is 40.

The spelling of 915340417231 in words is "nine hundred fifteen billion, three hundred forty million, four hundred seventeen thousand, two hundred thirty-one".