99291773551 has 2 divisors, whose sum is σ = 99291773552. Its totient is φ = 99291773550.

The previous prime is 99291773549. The next prime is 99291773587. The reversal of 99291773551 is 15537719299.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 99291773551 - 2¹ = 99291773549 is a prime.

Together with 99291773549, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99291773521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49645886775 + 49645886776.

It is an arithmetic number, because the mean of its divisors is an integer number (49645886776).

Almost surely, 2^99291773551 is an apocalyptic number.

99291773551 is a deficient number, since it is larger than the sum of its proper divisors (1).

99291773551 is an equidigital number, since it uses as much as digits as its factorization.

99291773551 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5358150, while the sum is 58.

The spelling of 99291773551 in words is "ninety-nine billion, two hundred ninety-one million, seven hundred seventy-three thousand, five hundred fifty-one".