18748774759 has 16 divisors (see below), whose sum is σ = 22031120160. Its totient is φ = 15729960960.

The previous prime is 18748774757. The next prime is 18748774787. The reversal of 18748774759 is 95747784781.

It is a cyclic number.

It is not a de Polignac number, because 18748774759 - 2¹ = 18748774757 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18748774694 and 18748774703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18748774757) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 878487 + ... + 899575.

It is an arithmetic number, because the mean of its divisors is an integer number (1376945010).

Almost surely, 2^18748774759 is an apocalyptic number.

18748774759 is a deficient number, since it is larger than the sum of its proper divisors (3282345401).

18748774759 is a wasteful number, since it uses less digits than its factorization.

18748774759 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27330.

The product of its digits is 110638080, while the sum is 67.

The spelling of 18748774759 in words is "eighteen billion, seven hundred forty-eight million, seven hundred seventy-four thousand, seven hundred fifty-nine".