11722523197 has 24 divisors (see below), whose sum is σ = 14803117056. Its totient is φ = 9086484000.

The previous prime is 11722523191. The next prime is 11722523201. The reversal of 11722523197 is 79132522711.

It is not a de Polignac number, because 11722523197 - 2³¹ = 9575039549 is a prime.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11722523191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 125547 + ... + 198007.

It is an arithmetic number, because the mean of its divisors is an integer number (616796544).

Almost surely, 2^11722523197 is an apocalyptic number.

It is an amenable number.

11722523197 is a deficient number, since it is larger than the sum of its proper divisors (3080593859).

11722523197 is a wasteful number, since it uses less digits than its factorization.

11722523197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72681 (or 72670 counting only the distinct ones).

The product of its digits is 52920, while the sum is 40.

The spelling of 11722523197 in words is "eleven billion, seven hundred twenty-two million, five hundred twenty-three thousand, one hundred ninety-seven".