12901892417 has 2 divisors, whose sum is σ = 12901892418. Its totient is φ = 12901892416.

The previous prime is 12901892383. The next prime is 12901892461. The reversal of 12901892417 is 71429810921.

It is a happy number.

It is an a-pointer prime, because the next prime (12901892461) can be obtained adding 12901892417 to its sum of digits (44).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10523477056 + 2378415361 = 102584^2 + 48769^2 .

It is a cyclic number.

It is not a de Polignac number, because 12901892417 - 2²⁰ = 12900843841 is a prime.

It is not a weakly prime, because it can be changed into another prime (12901892477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6450946208 + 6450946209.

It is an arithmetic number, because the mean of its divisors is an integer number (6450946209).

Almost surely, 2^12901892417 is an apocalyptic number.

It is an amenable number.

12901892417 is a deficient number, since it is larger than the sum of its proper divisors (1).

12901892417 is an equidigital number, since it uses as much as digits as its factorization.

12901892417 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 44.

The spelling of 12901892417 in words is "twelve billion, nine hundred one million, eight hundred ninety-two thousand, four hundred seventeen".