23005171979 has 2 divisors, whose sum is σ = 23005171980. Its totient is φ = 23005171978.

The previous prime is 23005171963. The next prime is 23005171991. The reversal of 23005171979 is 97917150032.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23005171979 - 2⁴ = 23005171963 is a prime.

It is not a weakly prime, because it can be changed into another prime (23005131979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11502585989 + 11502585990.

It is an arithmetic number, because the mean of its divisors is an integer number (11502585990).

Almost surely, 2^23005171979 is an apocalyptic number.

23005171979 is a deficient number, since it is larger than the sum of its proper divisors (1).

23005171979 is an equidigital number, since it uses as much as digits as its factorization.

23005171979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 119070, while the sum is 44.

The spelling of 23005171979 in words is "twenty-three billion, five million, one hundred seventy-one thousand, nine hundred seventy-nine".