22712028623 has 4 divisors (see below), whose sum is σ = 22731425208. Its totient is φ = 22692632040.

The previous prime is 22712028593. The next prime is 22712028631. The reversal of 22712028623 is 32682021722.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22712028623 - 2¹⁰ = 22712027599 is a prime.

It is a super-2 number, since 2×22712028623² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22712028323) 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, 9696536 + ... + 9698877.

It is an arithmetic number, because the mean of its divisors is an integer number (5682856302).

Almost surely, 2^22712028623 is an apocalyptic number.

22712028623 is a deficient number, since it is larger than the sum of its proper divisors (19396585).

22712028623 is a wasteful number, since it uses less digits than its factorization.

22712028623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19396584.

The product of its (nonzero) digits is 32256, while the sum is 35.

The spelling of 22712028623 in words is "twenty-two billion, seven hundred twelve million, twenty-eight thousand, six hundred twenty-three".