88349221363981 has 2 divisors, whose sum is σ = 88349221363982. Its totient is φ = 88349221363980.

The previous prime is 88349221363957. The next prime is 88349221363999. The reversal of 88349221363981 is 18936312294388.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68744561242756 + 19604660121225 = 8291234^2 + 4427715^2 .

It is a cyclic number.

It is not a de Polignac number, because 88349221363981 - 2²⁵ = 88349187809549 is a prime.

It is a super-2 number, since 2×88349221363981² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (88349227363981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44174610681990 + 44174610681991.

It is an arithmetic number, because the mean of its divisors is an integer number (44174610681991).

Almost surely, 2^{88349221363981} is an apocalyptic number.

It is an amenable number.

88349221363981 is a deficient number, since it is larger than the sum of its proper divisors (1).

88349221363981 is an equidigital number, since it uses as much as digits as its factorization.

88349221363981 is an evil number, because the sum of its binary digits is even.

The product of its digits is 107495424, while the sum is 67.

The spelling of 88349221363981 in words is "eighty-eight trillion, three hundred forty-nine billion, two hundred twenty-one million, three hundred sixty-three thousand, nine hundred eighty-one".