18746512783 has 2 divisors, whose sum is σ = 18746512784. Its totient is φ = 18746512782.

The previous prime is 18746512777. The next prime is 18746512787. The reversal of 18746512783 is 38721564781.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18746512783 - 2⁵ = 18746512751 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18746512783.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18746512787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9373256391 + 9373256392.

It is an arithmetic number, because the mean of its divisors is an integer number (9373256392).

Almost surely, 2^18746512783 is an apocalyptic number.

18746512783 is a deficient number, since it is larger than the sum of its proper divisors (1).

18746512783 is an equidigital number, since it uses as much as digits as its factorization.

18746512783 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2257920, while the sum is 52.

The spelling of 18746512783 in words is "eighteen billion, seven hundred forty-six million, five hundred twelve thousand, seven hundred eighty-three".