22613234437 has 8 divisors (see below), whose sum is σ = 23977593432. Its totient is φ = 21252672000.

The previous prime is 22613234419. The next prime is 22613234443. The reversal of 22613234437 is 73443231622.

It can be written as a sum of positive squares in 4 ways, for example, as 15516688356 + 7096546081 = 124566^2 + 84241^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22613234437 - 2²³ = 22604845829 is a prime.

It is a super-2 number, since 2×22613234437² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22613234396 and 22613234405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22613234417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 936864 + ... + 960697.

It is an arithmetic number, because the mean of its divisors is an integer number (2997199179).

Almost surely, 2^22613234437 is an apocalyptic number.

It is an amenable number.

22613234437 is a deficient number, since it is larger than the sum of its proper divisors (1364358995).

22613234437 is a wasteful number, since it uses less digits than its factorization.

22613234437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1898279.

The product of its digits is 145152, while the sum is 37.

The spelling of 22613234437 in words is "twenty-two billion, six hundred thirteen million, two hundred thirty-four thousand, four hundred thirty-seven".