11899697507 has 2 divisors, whose sum is σ = 11899697508. Its totient is φ = 11899697506.

The previous prime is 11899697501. The next prime is 11899697527. The reversal of 11899697507 is 70579699811.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11899697507 - 2¹⁰ = 11899696483 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11899697507.

It is not a weakly prime, because it can be changed into another prime (11899697501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5949848753 + 5949848754.

It is an arithmetic number, because the mean of its divisors is an integer number (5949848754).

Almost surely, 2^11899697507 is an apocalyptic number.

11899697507 is a deficient number, since it is larger than the sum of its proper divisors (1).

11899697507 is an equidigital number, since it uses as much as digits as its factorization.

11899697507 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8573040, while the sum is 62.

The spelling of 11899697507 in words is "eleven billion, eight hundred ninety-nine million, six hundred ninety-seven thousand, five hundred seven".