10591997399 has 2 divisors, whose sum is σ = 10591997400. Its totient is φ = 10591997398.

The previous prime is 10591997357. The next prime is 10591997453. The reversal of 10591997399 is 99379919501.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10591997399 is a prime.

It is a super-2 number, since 2×10591997399² (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 (10591957399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5295998699 + 5295998700.

It is an arithmetic number, because the mean of its divisors is an integer number (5295998700).

Almost surely, 2^10591997399 is an apocalyptic number.

10591997399 is a deficient number, since it is larger than the sum of its proper divisors (1).

10591997399 is an equidigital number, since it uses as much as digits as its factorization.

10591997399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6200145, while the sum is 62.

The spelling of 10591997399 in words is "ten billion, five hundred ninety-one million, nine hundred ninety-seven thousand, three hundred ninety-nine".