22809428237 has 4 divisors (see below), whose sum is σ = 24009924480. Its totient is φ = 21608931996.

The previous prime is 22809428231. The next prime is 22809428251. The reversal of 22809428237 is 73282490822.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 73282490822 = 2 ⋅36641245411.

It is a cyclic number.

It is not a de Polignac number, because 22809428237 - 2²⁶ = 22742319373 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22809428191 and 22809428200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22809428231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 600248093 + ... + 600248130.

It is an arithmetic number, because the mean of its divisors is an integer number (6002481120).

Almost surely, 2^22809428237 is an apocalyptic number.

It is an amenable number.

22809428237 is a deficient number, since it is larger than the sum of its proper divisors (1200496243).

22809428237 is a wasteful number, since it uses less digits than its factorization.

22809428237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1200496242.

The product of its (nonzero) digits is 774144, while the sum is 47.

The spelling of 22809428237 in words is "twenty-two billion, eight hundred nine million, four hundred twenty-eight thousand, two hundred thirty-seven".