23625829457261 has 2 divisors, whose sum is σ = 23625829457262. Its totient is φ = 23625829457260.

The previous prime is 23625829457257. The next prime is 23625829457273. The reversal of 23625829457261 is 16275492852632.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21047817084100 + 2578012373161 = 4587790^2 + 1605619^2 .

It is a cyclic number.

It is not a de Polignac number, because 23625829457261 - 2² = 23625829457257 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23625829457194 and 23625829457203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23625829457221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11812914728630 + 11812914728631.

It is an arithmetic number, because the mean of its divisors is an integer number (11812914728631).

Almost surely, 2^{23625829457261} is an apocalyptic number.

It is an amenable number.

23625829457261 is a deficient number, since it is larger than the sum of its proper divisors (1).

23625829457261 is an equidigital number, since it uses as much as digits as its factorization.

23625829457261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 87091200, while the sum is 62.

The spelling of 23625829457261 in words is "twenty-three trillion, six hundred twenty-five billion, eight hundred twenty-nine million, four hundred fifty-seven thousand, two hundred sixty-one".