22399073991 has 48 divisors (see below), whose sum is σ = 38741568480. Its totient is φ = 12753054720.

The previous prime is 22399073981. The next prime is 22399074007. The reversal of 22399073991 is 19937099322.

It is not a de Polignac number, because 22399073991 - 2¹¹ = 22399071943 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22399073981) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 335911 + ... + 397031.

It is an arithmetic number, because the mean of its divisors is an integer number (807116010).

Almost surely, 2^22399073991 is an apocalyptic number.

22399073991 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

22399073991 is a deficient number, since it is larger than the sum of its proper divisors (16342494489).

22399073991 is a wasteful number, since it uses less digits than its factorization.

22399073991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61421 (or 61408 counting only the distinct ones).

The product of its (nonzero) digits is 1653372, while the sum is 54.

The spelling of 22399073991 in words is "twenty-two billion, three hundred ninety-nine million, seventy-three thousand, nine hundred ninety-one".