99752497993 has 2 divisors, whose sum is σ = 99752497994. Its totient is φ = 99752497992.

The previous prime is 99752497973. The next prime is 99752498003. The reversal of 99752497993 is 39979425799.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 94763618569 + 4988879424 = 307837^2 + 70632^2 .

It is a cyclic number.

It is not a de Polignac number, because 99752497993 - 2²⁹ = 99215627081 is a prime.

It is not a weakly prime, because it can be changed into another prime (99752497963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49876248996 + 49876248997.

It is an arithmetic number, because the mean of its divisors is an integer number (49876248997).

Almost surely, 2^99752497993 is an apocalyptic number.

It is an amenable number.

99752497993 is a deficient number, since it is larger than the sum of its proper divisors (1).

99752497993 is an equidigital number, since it uses as much as digits as its factorization.

99752497993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 347208120, while the sum is 73.

The spelling of 99752497993 in words is "ninety-nine billion, seven hundred fifty-two million, four hundred ninety-seven thousand, nine hundred ninety-three".