15012391717 has 2 divisors, whose sum is σ = 15012391718. Its totient is φ = 15012391716.

The previous prime is 15012391601. The next prime is 15012391759. The reversal of 15012391717 is 71719321051.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14993022916 + 19368801 = 122446^2 + 4401^2 .

It is a cyclic number.

It is not a de Polignac number, because 15012391717 - 2¹¹ = 15012389669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15012391787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7506195858 + 7506195859.

It is an arithmetic number, because the mean of its divisors is an integer number (7506195859).

Almost surely, 2^15012391717 is an apocalyptic number.

It is an amenable number.

15012391717 is a deficient number, since it is larger than the sum of its proper divisors (1).

15012391717 is an equidigital number, since it uses as much as digits as its factorization.

15012391717 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13230, while the sum is 37.

The spelling of 15012391717 in words is "fifteen billion, twelve million, three hundred ninety-one thousand, seven hundred seventeen".