15490412317 has 4 divisors (see below), whose sum is σ = 15702609820. Its totient is φ = 15278214816.

The previous prime is 15490412297. The next prime is 15490412339. The reversal of 15490412317 is 71321409451.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 7531809796 + 7958602521 = 86786^2 + 89211^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15490412317 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 (15490412617) 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, 106098642 + ... + 106098787.

It is an arithmetic number, because the mean of its divisors is an integer number (3925652455).

Almost surely, 2^15490412317 is an apocalyptic number.

It is an amenable number.

15490412317 is a deficient number, since it is larger than the sum of its proper divisors (212197503).

15490412317 is an equidigital number, since it uses as much as digits as its factorization.

15490412317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212197502.

The product of its (nonzero) digits is 30240, while the sum is 37.

The spelling of 15490412317 in words is "fifteen billion, four hundred ninety million, four hundred twelve thousand, three hundred seventeen".