11822023917 has 18 divisors (see below), whose sum is σ = 18769771566. Its totient is φ = 7164862320.

The previous prime is 11822023859. The next prime is 11822023919. The reversal of 11822023917 is 71932022811.

It can be written as a sum of positive squares in only one way, i.e., 8795813796 + 3026210121 = 93786^2 + 55011^2 .

It is not a de Polignac number, because 11822023917 - 2⁷ = 11822023789 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11822023919) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 5426838 + ... + 5429015.

It is an arithmetic number, because the mean of its divisors is an integer number (1042765087).

Almost surely, 2^11822023917 is an apocalyptic number.

It is an amenable number.

11822023917 is a deficient number, since it is larger than the sum of its proper divisors (6947747649).

11822023917 is a wasteful number, since it uses less digits than its factorization.

11822023917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10855881 (or 10855867 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The spelling of 11822023917 in words is "eleven billion, eight hundred twenty-two million, twenty-three thousand, nine hundred seventeen".