18763426745 has 16 divisors (see below), whose sum is σ = 27246388608. Its totient is φ = 12109505280.

The previous prime is 18763426709. The next prime is 18763426751. The reversal of 18763426745 is 54762436781.

It is not a de Polignac number, because 18763426745 - 2¹² = 18763422649 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 15766991 + ... + 15768180.

It is an arithmetic number, because the mean of its divisors is an integer number (1702899288).

Almost surely, 2^18763426745 is an apocalyptic number.

It is an amenable number.

18763426745 is a deficient number, since it is larger than the sum of its proper divisors (8482961863).

18763426745 is a wasteful number, since it uses less digits than its factorization.

18763426745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31535200.

The product of its digits is 6773760, while the sum is 53.

The spelling of 18763426745 in words is "eighteen billion, seven hundred sixty-three million, four hundred twenty-six thousand, seven hundred forty-five".