91583290451 has 2 divisors, whose sum is σ = 91583290452. Its totient is φ = 91583290450.

The previous prime is 91583290339. The next prime is 91583290459. The reversal of 91583290451 is 15409238519.

It is a strong prime.

It is an emirp because it is prime and its reverse (15409238519) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 91583290451 - 2²⁶ = 91516181587 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 91583290396 and 91583290405.

It is not a weakly prime, because it can be changed into another prime (91583290459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45791645225 + 45791645226.

It is an arithmetic number, because the mean of its divisors is an integer number (45791645226).

Almost surely, 2^91583290451 is an apocalyptic number.

91583290451 is a deficient number, since it is larger than the sum of its proper divisors (1).

91583290451 is an equidigital number, since it uses as much as digits as its factorization.

91583290451 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 388800, while the sum is 47.

The spelling of 91583290451 in words is "ninety-one billion, five hundred eighty-three million, two hundred ninety thousand, four hundred fifty-one".