99736974923 has 2 divisors, whose sum is σ = 99736974924. Its totient is φ = 99736974922.

The previous prime is 99736974913. The next prime is 99736974941. The reversal of 99736974923 is 32947963799.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (32947963799) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99736974923 - 2³² = 95442007627 is a prime.

It is a super-2 number, since 2×99736974923² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (99736974913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49868487461 + 49868487462.

It is an arithmetic number, because the mean of its divisors is an integer number (49868487462).

Almost surely, 2^99736974923 is an apocalyptic number.

99736974923 is a deficient number, since it is larger than the sum of its proper divisors (1).

99736974923 is an equidigital number, since it uses as much as digits as its factorization.

99736974923 is an evil number, because the sum of its binary digits is even.

The product of its digits is 138883248, while the sum is 68.

It can be divided in two parts, 9973 and 6974923, that added together give a palindrome (6984896).

The spelling of 99736974923 in words is "ninety-nine billion, seven hundred thirty-six million, nine hundred seventy-four thousand, nine hundred twenty-three".