91677510277 has 2 divisors, whose sum is σ = 91677510278. Its totient is φ = 91677510276.

The previous prime is 91677510241. The next prime is 91677510319. The reversal of 91677510277 is 77201577619.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51677110276 + 40000400001 = 227326^2 + 200001^2 .

It is a cyclic number.

It is not a de Polignac number, because 91677510277 - 2¹¹ = 91677508229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91677510217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45838755138 + 45838755139.

It is an arithmetic number, because the mean of its divisors is an integer number (45838755139).

Almost surely, 2^91677510277 is an apocalyptic number.

It is an amenable number.

91677510277 is a deficient number, since it is larger than the sum of its proper divisors (1).

91677510277 is an equidigital number, since it uses as much as digits as its factorization.

91677510277 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296540, while the sum is 52.

The spelling of 91677510277 in words is "ninety-one billion, six hundred seventy-seven million, five hundred ten thousand, two hundred seventy-seven".