11979799950297 has 16 divisors (see below), whose sum is σ = 16489599446528. Its totient is φ = 7728306647040.

The previous prime is 11979799950271. The next prime is 11979799950343. The reversal of 11979799950297 is 79205999797911.

It is not a de Polignac number, because 11979799950297 - 2¹⁹ = 11979799426009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11979799951297) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3758248 + ... + 6171225.

It is an arithmetic number, because the mean of its divisors is an integer number (1030599965408).

Almost surely, 2^{11979799950297} is an apocalyptic number.

It is an amenable number.

11979799950297 is a deficient number, since it is larger than the sum of its proper divisors (4509799496231).

11979799950297 is a wasteful number, since it uses less digits than its factorization.

11979799950297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9942480.

The product of its (nonzero) digits is 1822842630, while the sum is 84.

The spelling of 11979799950297 in words is "eleven trillion, nine hundred seventy-nine billion, seven hundred ninety-nine million, nine hundred fifty thousand, two hundred ninety-seven".