89747922577 has 2 divisors, whose sum is σ = 89747922578. Its totient is φ = 89747922576.

The previous prime is 89747922569. The next prime is 89747922617. The reversal of 89747922577 is 77522974798.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 78400560001 + 11347362576 = 280001^2 + 106524^2 .

It is a cyclic number.

It is not a de Polignac number, because 89747922577 - 2³ = 89747922569 is a prime.

It is not a weakly prime, because it can be changed into another prime (89747922977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44873961288 + 44873961289.

It is an arithmetic number, because the mean of its divisors is an integer number (44873961289).

Almost surely, 2^89747922577 is an apocalyptic number.

It is an amenable number.

89747922577 is a deficient number, since it is larger than the sum of its proper divisors (1).

89747922577 is an equidigital number, since it uses as much as digits as its factorization.

89747922577 is an evil number, because the sum of its binary digits is even.

The product of its digits is 124467840, while the sum is 67.

The spelling of 89747922577 in words is "eighty-nine billion, seven hundred forty-seven million, nine hundred twenty-two thousand, five hundred seventy-seven".