91547372759 has 2 divisors, whose sum is σ = 91547372760. Its totient is φ = 91547372758.

The previous prime is 91547372717. The next prime is 91547372771. The reversal of 91547372759 is 95727374519.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-91547372759 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 91547372698 and 91547372707.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91547372159) 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, 45773686379 + 45773686380.

It is an arithmetic number, because the mean of its divisors is an integer number (45773686380).

Almost surely, 2^91547372759 is an apocalyptic number.

91547372759 is a deficient number, since it is larger than the sum of its proper divisors (1).

91547372759 is an equidigital number, since it uses as much as digits as its factorization.

91547372759 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16669800, while the sum is 59.

The spelling of 91547372759 in words is "ninety-one billion, five hundred forty-seven million, three hundred seventy-two thousand, seven hundred fifty-nine".