99772868323 has 2 divisors, whose sum is σ = 99772868324. Its totient is φ = 99772868322.

The previous prime is 99772868243. The next prime is 99772868387. The reversal of 99772868323 is 32386827799.

It is an a-pointer prime, because the next prime (99772868387) can be obtained adding 99772868323 to its sum of digits (64).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 99772868323 - 2²¹ = 99770771171 is a prime.

It is not a weakly prime, because it can be changed into another prime (99772068323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49886434161 + 49886434162.

It is an arithmetic number, because the mean of its divisors is an integer number (49886434162).

Almost surely, 2^99772868323 is an apocalyptic number.

99772868323 is a deficient number, since it is larger than the sum of its proper divisors (1).

99772868323 is an equidigital number, since it uses as much as digits as its factorization.

99772868323 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54867456, while the sum is 64.

The spelling of 99772868323 in words is "ninety-nine billion, seven hundred seventy-two million, eight hundred sixty-eight thousand, three hundred twenty-three".