10891742297 has 2 divisors, whose sum is σ = 10891742298. Its totient is φ = 10891742296.

The previous prime is 10891742273. The next prime is 10891742311. The reversal of 10891742297 is 79224719801.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10677295561 + 214446736 = 103331^2 + 14644^2 .

It is a cyclic number.

It is not a de Polignac number, because 10891742297 - 2⁸ = 10891742041 is a prime.

It is not a weakly prime, because it can be changed into another prime (10891742237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5445871148 + 5445871149.

It is an arithmetic number, because the mean of its divisors is an integer number (5445871149).

Almost surely, 2^10891742297 is an apocalyptic number.

It is an amenable number.

10891742297 is a deficient number, since it is larger than the sum of its proper divisors (1).

10891742297 is an equidigital number, since it uses as much as digits as its factorization.

10891742297 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 508032, while the sum is 50.

The spelling of 10891742297 in words is "ten billion, eight hundred ninety-one million, seven hundred forty-two thousand, two hundred ninety-seven".