22994358887639 has 2 divisors, whose sum is σ = 22994358887640. Its totient is φ = 22994358887638.

The previous prime is 22994358887597. The next prime is 22994358887719. The reversal of 22994358887639 is 93678885349922.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22994358887639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22994358887039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11497179443819 + 11497179443820.

It is an arithmetic number, because the mean of its divisors is an integer number (11497179443820).

Almost surely, 2^{22994358887639} is an apocalyptic number.

22994358887639 is a deficient number, since it is larger than the sum of its proper divisors (1).

22994358887639 is an equidigital number, since it uses as much as digits as its factorization.

22994358887639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11287019520, while the sum is 83.

The spelling of 22994358887639 in words is "twenty-two trillion, nine hundred ninety-four billion, three hundred fifty-eight million, eight hundred eighty-seven thousand, six hundred thirty-nine".