23915909461 has 2 divisors, whose sum is σ = 23915909462. Its totient is φ = 23915909460.

The previous prime is 23915909411. The next prime is 23915909509. The reversal of 23915909461 is 16490951932.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12910640625 + 11005268836 = 113625^2 + 104906^2 .

It is a cyclic number.

It is not a de Polignac number, because 23915909461 - 2⁷ = 23915909333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23915909401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11957954730 + 11957954731.

It is an arithmetic number, because the mean of its divisors is an integer number (11957954731).

Almost surely, 2^23915909461 is an apocalyptic number.

It is an amenable number.

23915909461 is a deficient number, since it is larger than the sum of its proper divisors (1).

23915909461 is an equidigital number, since it uses as much as digits as its factorization.

23915909461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 524880, while the sum is 49.

The spelling of 23915909461 in words is "twenty-three billion, nine hundred fifteen million, nine hundred nine thousand, four hundred sixty-one".