91769456461 has 2 divisors, whose sum is σ = 91769456462. Its totient is φ = 91769456460.

The previous prime is 91769456341. The next prime is 91769456509. The reversal of 91769456461 is 16465496719.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 91676333961 + 93122500 = 302781^2 + 9650^2 .

It is a cyclic number.

It is not a de Polignac number, because 91769456461 - 2¹⁵ = 91769423693 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 91769456396 and 91769456405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91769459461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45884728230 + 45884728231.

It is an arithmetic number, because the mean of its divisors is an integer number (45884728231).

Almost surely, 2^91769456461 is an apocalyptic number.

It is an amenable number.

91769456461 is a deficient number, since it is larger than the sum of its proper divisors (1).

91769456461 is an equidigital number, since it uses as much as digits as its factorization.

91769456461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9797760, while the sum is 58.

The spelling of 91769456461 in words is "ninety-one billion, seven hundred sixty-nine million, four hundred fifty-six thousand, four hundred sixty-one".