22615023437 has 2 divisors, whose sum is σ = 22615023438. Its totient is φ = 22615023436.

The previous prime is 22615023383. The next prime is 22615023439. The reversal of 22615023437 is 73432051622.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22604821801 + 10201636 = 150349^2 + 3194^2 .

It is a cyclic number.

It is not a de Polignac number, because 22615023437 - 2⁸ = 22615023181 is a prime.

It is a super-2 number, since 2×22615023437² (a number of 22 digits) contains 22 as substring.

Together with 22615023439, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 22615023397 and 22615023406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22615023439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11307511718 + 11307511719.

It is an arithmetic number, because the mean of its divisors is an integer number (11307511719).

Almost surely, 2^22615023437 is an apocalyptic number.

It is an amenable number.

22615023437 is a deficient number, since it is larger than the sum of its proper divisors (1).

22615023437 is an equidigital number, since it uses as much as digits as its factorization.

22615023437 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 35.

The spelling of 22615023437 in words is "twenty-two billion, six hundred fifteen million, twenty-three thousand, four hundred thirty-seven".