23790821699 has 2 divisors, whose sum is σ = 23790821700. Its totient is φ = 23790821698.

The previous prime is 23790821657. The next prime is 23790821701. The reversal of 23790821699 is 99612809732.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23790821699 is a prime.

It is a super-2 number, since 2×23790821699² (a number of 22 digits) contains 22 as substring.

Together with 23790821701, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (23790821099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11895410849 + 11895410850.

It is an arithmetic number, because the mean of its divisors is an integer number (11895410850).

Almost surely, 2^23790821699 is an apocalyptic number.

23790821699 is a deficient number, since it is larger than the sum of its proper divisors (1).

23790821699 is an equidigital number, since it uses as much as digits as its factorization.

23790821699 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2939328, while the sum is 56.

The spelling of 23790821699 in words is "twenty-three billion, seven hundred ninety million, eight hundred twenty-one thousand, six hundred ninety-nine".