23946777749 has 2 divisors, whose sum is σ = 23946777750. Its totient is φ = 23946777748.

The previous prime is 23946777719. The next prime is 23946777763. The reversal of 23946777749 is 94777764932.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23170319524 + 776458225 = 152218^2 + 27865^2 .

It is a cyclic number.

It is not a de Polignac number, because 23946777749 - 2²⁰ = 23945729173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23946777719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11973388874 + 11973388875.

It is an arithmetic number, because the mean of its divisors is an integer number (11973388875).

Almost surely, 2^23946777749 is an apocalyptic number.

It is an amenable number.

23946777749 is a deficient number, since it is larger than the sum of its proper divisors (1).

23946777749 is an equidigital number, since it uses as much as digits as its factorization.

23946777749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 112021056, while the sum is 65.

The spelling of 23946777749 in words is "twenty-three billion, nine hundred forty-six million, seven hundred seventy-seven thousand, seven hundred forty-nine".