23634426451 has 2 divisors, whose sum is σ = 23634426452. Its totient is φ = 23634426450.

The previous prime is 23634426449. The next prime is 23634426461. The reversal of 23634426451 is 15462443632.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23634426451 - 2¹ = 23634426449 is a prime.

It is a super-2 number, since 2×23634426451² (a number of 22 digits) contains 22 as substring.

Together with 23634426449, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (23634426421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11817213225 + 11817213226.

It is an arithmetic number, because the mean of its divisors is an integer number (11817213226).

Almost surely, 2^23634426451 is an apocalyptic number.

23634426451 is a deficient number, since it is larger than the sum of its proper divisors (1).

23634426451 is an equidigital number, since it uses as much as digits as its factorization.

23634426451 is an evil number, because the sum of its binary digits is even.

The product of its digits is 414720, while the sum is 40.

The spelling of 23634426451 in words is "twenty-three billion, six hundred thirty-four million, four hundred twenty-six thousand, four hundred fifty-one".