99780824093 has 4 divisors (see below), whose sum is σ = 99901478880. Its totient is φ = 99660169308.

The previous prime is 99780824089. The next prime is 99780824113. The reversal of 99780824093 is 39042808799.

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.

It is a cyclic number.

It is not a de Polignac number, because 99780824093 - 2² = 99780824089 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 (99780824053) 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, 60326153 + ... + 60327806.

It is an arithmetic number, because the mean of its divisors is an integer number (24975369720).

Almost surely, 2^99780824093 is an apocalyptic number.

It is an amenable number.

99780824093 is a deficient number, since it is larger than the sum of its proper divisors (120654787).

99780824093 is a wasteful number, since it uses less digits than its factorization.

99780824093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120654786.

The product of its (nonzero) digits is 7838208, while the sum is 59.

The spelling of 99780824093 in words is "ninety-nine billion, seven hundred eighty million, eight hundred twenty-four thousand, ninety-three".