9615648431 has 2 divisors, whose sum is σ = 9615648432. Its totient is φ = 9615648430.

The previous prime is 9615648401. The next prime is 9615648439. The reversal of 9615648431 is 1348465169.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9615648431 is a prime.

It is a super-2 number, since 2×9615648431² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9615648439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4807824215 + 4807824216.

It is an arithmetic number, because the mean of its divisors is an integer number (4807824216).

Almost surely, 2^9615648431 is an apocalyptic number.

9615648431 is a deficient number, since it is larger than the sum of its proper divisors (1).

9615648431 is an equidigital number, since it uses as much as digits as its factorization.

9615648431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 622080, while the sum is 47.

The square root of 9615648431 is about 98059.4127608360. The cubic root of 9615648431 is about 2126.4712989322.

The spelling of 9615648431 in words is "nine billion, six hundred fifteen million, six hundred forty-eight thousand, four hundred thirty-one".