99124738693 has 4 divisors (see below), whose sum is σ = 99159171840. Its totient is φ = 99090305548.

The previous prime is 99124738651. The next prime is 99124738697. The reversal of 99124738693 is 39683742199.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 39683742199 = 9467 ⋅4191797.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99124738693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99124738697) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17212255 + ... + 17218012.

It is an arithmetic number, because the mean of its divisors is an integer number (24789792960).

Almost surely, 2^99124738693 is an apocalyptic number.

It is an amenable number.

99124738693 is a deficient number, since it is larger than the sum of its proper divisors (34433147).

99124738693 is a wasteful number, since it uses less digits than its factorization.

99124738693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34433146.

The product of its digits is 17635968, while the sum is 61.

The spelling of 99124738693 in words is "ninety-nine billion, one hundred twenty-four million, seven hundred thirty-eight thousand, six hundred ninety-three".