11992687399 has 12 divisors (see below), whose sum is σ = 15065195152. Its totient is φ = 9344950560.

The previous prime is 11992687337. The next prime is 11992687409. The reversal of 11992687399 is 99378629911.

It is not a de Polignac number, because 11992687399 - 2¹⁷ = 11992556327 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11992687399.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11992687199) 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, 7078662 + ... + 7080355.

Almost surely, 2^11992687399 is an apocalyptic number.

11992687399 is a deficient number, since it is larger than the sum of its proper divisors (3072507753).

11992687399 is a wasteful number, since it uses less digits than its factorization.

11992687399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14159046 (or 14159035 counting only the distinct ones).

The product of its digits is 13226976, while the sum is 64.

The spelling of 11992687399 in words is "eleven billion, nine hundred ninety-two million, six hundred eighty-seven thousand, three hundred ninety-nine".