23774148947 has 2 divisors, whose sum is σ = 23774148948. Its totient is φ = 23774148946.

The previous prime is 23774148911. The next prime is 23774148949. The reversal of 23774148947 is 74984147732.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23774148947 - 2⁶ = 23774148883 is a prime.

Together with 23774148949, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 23774148892 and 23774148901.

It is not a weakly prime, because it can be changed into another prime (23774148949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11887074473 + 11887074474.

It is an arithmetic number, because the mean of its divisors is an integer number (11887074474).

Almost surely, 2^23774148947 is an apocalyptic number.

23774148947 is a deficient number, since it is larger than the sum of its proper divisors (1).

23774148947 is an equidigital number, since it uses as much as digits as its factorization.

23774148947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9483264, while the sum is 56.

The spelling of 23774148947 in words is "twenty-three billion, seven hundred seventy-four million, one hundred forty-eight thousand, nine hundred forty-seven".