18457379065 has 12 divisors (see below), whose sum is σ = 22366044324. Its totient is φ = 14622502944.

The previous prime is 18457379053. The next prime is 18457379081. The reversal of 18457379065 is 56097375481.

It can be written as a sum of positive squares in 2 ways, for example, as 2485221904 + 15972157161 = 49852^2 + 126381^2 .

It is not a de Polignac number, because 18457379065 - 2¹⁷ = 18457247993 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18457378997 and 18457379015.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 120934 + ... + 227023.

It is an arithmetic number, because the mean of its divisors is an integer number (1863837027).

Almost surely, 2^18457379065 is an apocalyptic number.

It is an amenable number.

18457379065 is a deficient number, since it is larger than the sum of its proper divisors (3908665259).

18457379065 is an equidigital number, since it uses as much as digits as its factorization.

18457379065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348168 (or 348065 counting only the distinct ones).

The product of its (nonzero) digits is 6350400, while the sum is 55.

The spelling of 18457379065 in words is "eighteen billion, four hundred fifty-seven million, three hundred seventy-nine thousand, sixty-five".