91732452577 has 2 divisors, whose sum is σ = 91732452578. Its totient is φ = 91732452576.

The previous prime is 91732452473. The next prime is 91732452583. The reversal of 91732452577 is 77525423719.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85386099681 + 6346352896 = 292209^2 + 79664^2 .

It is a cyclic number.

It is not a de Polignac number, because 91732452577 - 2³¹ = 89584968929 is a prime.

It is not a weakly prime, because it can be changed into another prime (91732452277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45866226288 + 45866226289.

It is an arithmetic number, because the mean of its divisors is an integer number (45866226289).

Almost surely, 2^91732452577 is an apocalyptic number.

It is an amenable number.

91732452577 is a deficient number, since it is larger than the sum of its proper divisors (1).

91732452577 is an equidigital number, since it uses as much as digits as its factorization.

91732452577 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3704400, while the sum is 52.

The spelling of 91732452577 in words is "ninety-one billion, seven hundred thirty-two million, four hundred fifty-two thousand, five hundred seventy-seven".