23791954609 has 2 divisors, whose sum is σ = 23791954610. Its totient is φ = 23791954608.

The previous prime is 23791954591. The next prime is 23791954649. The reversal of 23791954609 is 90645919732.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22231704609 + 1560250000 = 149103^2 + 39500^2 .

It is a cyclic number.

It is not a de Polignac number, because 23791954609 - 2²⁷ = 23657736881 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23791954609.

It is not a weakly prime, because it can be changed into another prime (23791954649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11895977304 + 11895977305.

It is an arithmetic number, because the mean of its divisors is an integer number (11895977305).

Almost surely, 2^23791954609 is an apocalyptic number.

It is an amenable number.

23791954609 is a deficient number, since it is larger than the sum of its proper divisors (1).

23791954609 is an equidigital number, since it uses as much as digits as its factorization.

23791954609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3674160, while the sum is 55.

The spelling of 23791954609 in words is "twenty-three billion, seven hundred ninety-one million, nine hundred fifty-four thousand, six hundred nine".