22987618639 has 2 divisors, whose sum is σ = 22987618640. Its totient is φ = 22987618638.

The previous prime is 22987618567. The next prime is 22987618649. The reversal of 22987618639 is 93681678922.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22987618639 - 2¹¹ = 22987616591 is a prime.

It is a super-2 number, since 2×22987618639² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22987618649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11493809319 + 11493809320.

It is an arithmetic number, because the mean of its divisors is an integer number (11493809320).

Almost surely, 2^22987618639 is an apocalyptic number.

22987618639 is a deficient number, since it is larger than the sum of its proper divisors (1).

22987618639 is an equidigital number, since it uses as much as digits as its factorization.

22987618639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15676416, while the sum is 61.

The spelling of 22987618639 in words is "twenty-two billion, nine hundred eighty-seven million, six hundred eighteen thousand, six hundred thirty-nine".