18339771746 has 16 divisors (see below), whose sum is σ = 28192358880. Its totient is φ = 8942505120.

The previous prime is 18339771727. The next prime is 18339771757. The reversal of 18339771746 is 64717793381.

It is a junction number, because it is equal to n+sod(n) for n = 18339771691 and 18339771700.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 156965 + ... + 247623.

It is an arithmetic number, because the mean of its divisors is an integer number (1762022430).

Almost surely, 2^18339771746 is an apocalyptic number.

18339771746 is a deficient number, since it is larger than the sum of its proper divisors (9852587134).

18339771746 is a wasteful number, since it uses less digits than its factorization.

18339771746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93169.

The product of its digits is 5334336, while the sum is 56.

The spelling of 18339771746 in words is "eighteen billion, three hundred thirty-nine million, seven hundred seventy-one thousand, seven hundred forty-six".