15396047497 has 2 divisors, whose sum is σ = 15396047498. Its totient is φ = 15396047496.

The previous prime is 15396047489. The next prime is 15396047503. The reversal of 15396047497 is 79474069351.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7767073161 + 7628974336 = 88131^2 + 87344^2 .

It is a cyclic number.

It is not a de Polignac number, because 15396047497 - 2³ = 15396047489 is a prime.

It is not a weakly prime, because it can be changed into another prime (15396047437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7698023748 + 7698023749.

It is an arithmetic number, because the mean of its divisors is an integer number (7698023749).

Almost surely, 2^15396047497 is an apocalyptic number.

It is an amenable number.

15396047497 is a deficient number, since it is larger than the sum of its proper divisors (1).

15396047497 is an equidigital number, since it uses as much as digits as its factorization.

15396047497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5715360, while the sum is 55.

The spelling of 15396047497 in words is "fifteen billion, three hundred ninety-six million, forty-seven thousand, four hundred ninety-seven".