12911097488 has 10 divisors (see below), whose sum is σ = 25015251414. Its totient is φ = 6455548736.

The previous prime is 12911097473. The next prime is 12911097503. The reversal of 12911097488 is 88479011921.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12911097473) and next prime (12911097503).

It can be written as a sum of positive squares in only one way, i.e., 8935542784 + 3975554704 = 94528^2 + 63052^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 403471781 + ... + 403471812.

Almost surely, 2^12911097488 is an apocalyptic number.

It is an amenable number.

12911097488 is a deficient number, since it is larger than the sum of its proper divisors (12104153926).

12911097488 is an equidigital number, since it uses as much as digits as its factorization.

12911097488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 806943601 (or 806943595 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 50.

The spelling of 12911097488 in words is "twelve billion, nine hundred eleven million, ninety-seven thousand, four hundred eighty-eight".