10591997393 has 12 divisors (see below), whose sum is σ = 11190404340. Its totient is φ = 10024118496.

The previous prime is 10591997357. The next prime is 10591997399. The reversal of 10591997393 is 39379919501.

It can be written as a sum of positive squares in 2 ways, for example, as 9507810064 + 1084187329 = 97508^2 + 32927^2 .

It is not a de Polignac number, because 10591997393 - 2²⁰ = 10590948817 is a prime.

It is a super-2 number, since 2×10591997393² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10591997399) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 345203 + ... + 374631.

It is an arithmetic number, because the mean of its divisors is an integer number (932533695).

Almost surely, 2^10591997393 is an apocalyptic number.

It is an amenable number.

10591997393 is a deficient number, since it is larger than the sum of its proper divisors (598406947).

10591997393 is an equidigital number, since it uses as much as digits as its factorization.

10591997393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30464 (or 30445 counting only the distinct ones).

The product of its (nonzero) digits is 2066715, while the sum is 56.

The spelling of 10591997393 in words is "ten billion, five hundred ninety-one million, nine hundred ninety-seven thousand, three hundred ninety-three".