23809620077 has 2 divisors, whose sum is σ = 23809620078. Its totient is φ = 23809620076.

The previous prime is 23809620073. The next prime is 23809620137. The reversal of 23809620077 is 77002690832.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17522081641 + 6287538436 = 132371^2 + 79294^2 .

It is a cyclic number.

It is not a de Polignac number, because 23809620077 - 2² = 23809620073 is a prime.

It is a super-2 number, since 2×23809620077² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23809620071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11904810038 + 11904810039.

It is an arithmetic number, because the mean of its divisors is an integer number (11904810039).

Almost surely, 2^23809620077 is an apocalyptic number.

It is an amenable number.

23809620077 is a deficient number, since it is larger than the sum of its proper divisors (1).

23809620077 is an equidigital number, since it uses as much as digits as its factorization.

23809620077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 254016, while the sum is 44.

The spelling of 23809620077 in words is "twenty-three billion, eight hundred nine million, six hundred twenty thousand, seventy-seven".