10915639487 has 2 divisors, whose sum is σ = 10915639488. Its totient is φ = 10915639486.

The previous prime is 10915639447. The next prime is 10915639499. The reversal of 10915639487 is 78493651901.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10915639487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10915639417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5457819743 + 5457819744.

It is an arithmetic number, because the mean of its divisors is an integer number (5457819744).

Almost surely, 2^10915639487 is an apocalyptic number.

10915639487 is a deficient number, since it is larger than the sum of its proper divisors (1).

10915639487 is an equidigital number, since it uses as much as digits as its factorization.

10915639487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1632960, while the sum is 53.

The spelling of 10915639487 in words is "ten billion, nine hundred fifteen million, six hundred thirty-nine thousand, four hundred eighty-seven".