88641586638769 has 2 divisors, whose sum is σ = 88641586638770. Its totient is φ = 88641586638768.

The previous prime is 88641586638727. The next prime is 88641586638811. The reversal of 88641586638769 is 96783668514688.

It is a balanced prime because it is at equal distance from previous prime (88641586638727) and next prime (88641586638811).

It can be written as a sum of positive squares in only one way, i.e., 88436871111744 + 204715527025 = 9404088^2 + 452455^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-88641586638769 is a prime.

It is a super-2 number, since 2×88641586638769² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (88641586638719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44320793319384 + 44320793319385.

It is an arithmetic number, because the mean of its divisors is an integer number (44320793319385).

Almost surely, 2^{88641586638769} is an apocalyptic number.

It is an amenable number.

88641586638769 is a deficient number, since it is larger than the sum of its proper divisors (1).

88641586638769 is an equidigital number, since it uses as much as digits as its factorization.

88641586638769 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20065812480, while the sum is 85.

The spelling of 88641586638769 in words is "eighty-eight trillion, six hundred forty-one billion, five hundred eighty-six million, six hundred thirty-eight thousand, seven hundred sixty-nine".