12904016591 has 2 divisors, whose sum is σ = 12904016592. Its totient is φ = 12904016590.

The previous prime is 12904016561. The next prime is 12904016599. The reversal of 12904016591 is 19561040921.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12904016591 is a prime.

It is a super-2 number, since 2×12904016591² (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 (12904016599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6452008295 + 6452008296.

It is an arithmetic number, because the mean of its divisors is an integer number (6452008296).

Almost surely, 2^12904016591 is an apocalyptic number.

12904016591 is a deficient number, since it is larger than the sum of its proper divisors (1).

12904016591 is an equidigital number, since it uses as much as digits as its factorization.

12904016591 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19440, while the sum is 38.

The spelling of 12904016591 in words is "twelve billion, nine hundred four million, sixteen thousand, five hundred ninety-one".