23434137247 has 2 divisors, whose sum is σ = 23434137248. Its totient is φ = 23434137246.

The previous prime is 23434137227. The next prime is 23434137277. The reversal of 23434137247 is 74273143432.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23434137247 is a prime.

It is a super-2 number, since 2×23434137247² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23434137227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11717068623 + 11717068624.

It is an arithmetic number, because the mean of its divisors is an integer number (11717068624).

Almost surely, 2^23434137247 is an apocalyptic number.

23434137247 is a deficient number, since it is larger than the sum of its proper divisors (1).

23434137247 is an equidigital number, since it uses as much as digits as its factorization.

23434137247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 338688, while the sum is 40.

The spelling of 23434137247 in words is "twenty-three billion, four hundred thirty-four million, one hundred thirty-seven thousand, two hundred forty-seven".