89190952577 has 2 divisors, whose sum is σ = 89190952578. Its totient is φ = 89190952576.

The previous prime is 89190952519. The next prime is 89190952699. The reversal of 89190952577 is 77525909198.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75089152576 + 14101800001 = 274024^2 + 118751^2 .

It is a cyclic number.

It is not a de Polignac number, because 89190952577 - 2²⁴ = 89174175361 is a prime.

It is not a weakly prime, because it can be changed into another prime (89190952507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44595476288 + 44595476289.

It is an arithmetic number, because the mean of its divisors is an integer number (44595476289).

Almost surely, 2^89190952577 is an apocalyptic number.

It is an amenable number.

89190952577 is a deficient number, since it is larger than the sum of its proper divisors (1).

89190952577 is an equidigital number, since it uses as much as digits as its factorization.

89190952577 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14288400, while the sum is 62.

The spelling of 89190952577 in words is "eighty-nine billion, one hundred ninety million, nine hundred fifty-two thousand, five hundred seventy-seven".