23229797977 has 2 divisors, whose sum is σ = 23229797978. Its totient is φ = 23229797976.

The previous prime is 23229797971. The next prime is 23229798043. The reversal of 23229797977 is 77979792232.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18770096016 + 4459701961 = 137004^2 + 66781^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23229797977 is a prime.

It is a super-3 number, since 3×23229797977³ (a number of 32 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (23229797971) 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, 11614898988 + 11614898989.

It is an arithmetic number, because the mean of its divisors is an integer number (11614898989).

Almost surely, 2^23229797977 is an apocalyptic number.

It is an amenable number.

23229797977 is a deficient number, since it is larger than the sum of its proper divisors (1).

23229797977 is an equidigital number, since it uses as much as digits as its factorization.

23229797977 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 42007896, while the sum is 64.

The spelling of 23229797977 in words is "twenty-three billion, two hundred twenty-nine million, seven hundred ninety-seven thousand, nine hundred seventy-seven".