23781754147 has 2 divisors, whose sum is σ = 23781754148. Its totient is φ = 23781754146.

The previous prime is 23781754127. The next prime is 23781754163. The reversal of 23781754147 is 74145718732.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23781754147 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23781754147.

It is not a weakly prime, because it can be changed into another prime (23781754127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11890877073 + 11890877074.

It is an arithmetic number, because the mean of its divisors is an integer number (11890877074).

Almost surely, 2^23781754147 is an apocalyptic number.

23781754147 is a deficient number, since it is larger than the sum of its proper divisors (1).

23781754147 is an equidigital number, since it uses as much as digits as its factorization.

23781754147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1317120, while the sum is 49.

The spelling of 23781754147 in words is "twenty-three billion, seven hundred eighty-one million, seven hundred fifty-four thousand, one hundred forty-seven".