18811412745 has 128 divisors (see below), whose sum is σ = 34381670400. Its totient is φ = 8738150400.

The previous prime is 18811412731. The next prime is 18811412773. The reversal of 18811412745 is 54721411881.

It is not a de Polignac number, because 18811412745 - 2⁴ = 18811412729 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18811412697 and 18811412706.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 14570550 + ... + 14571840.

It is an arithmetic number, because the mean of its divisors is an integer number (268606800).

Almost surely, 2^18811412745 is an apocalyptic number.

18811412745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18811412745 is a deficient number, since it is larger than the sum of its proper divisors (15570257655).

18811412745 is a wasteful number, since it uses less digits than its factorization.

18811412745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1431.

The product of its digits is 71680, while the sum is 42.

The spelling of 18811412745 in words is "eighteen billion, eight hundred eleven million, four hundred twelve thousand, seven hundred forty-five".