91706000651 has 2 divisors, whose sum is σ = 91706000652. Its totient is φ = 91706000650.

The previous prime is 91706000623. The next prime is 91706000653. The reversal of 91706000651 is 15600060719.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-91706000651 is a prime.

Together with 91706000653, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (91706000653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45853000325 + 45853000326.

It is an arithmetic number, because the mean of its divisors is an integer number (45853000326).

Almost surely, 2^91706000651 is an apocalyptic number.

91706000651 is a deficient number, since it is larger than the sum of its proper divisors (1).

91706000651 is an equidigital number, since it uses as much as digits as its factorization.

91706000651 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11340, while the sum is 35.

The spelling of 91706000651 in words is "ninety-one billion, seven hundred six million, six hundred fifty-one", and thus it is an aban number.