18370470385 has 8 divisors (see below), whose sum is σ = 23341303656. Its totient is φ = 13831883520.

The previous prime is 18370470383. The next prime is 18370470401. The reversal of 18370470385 is 58307407381.

It can be written as a sum of positive squares in 4 ways, for example, as 3943337616 + 14427132769 = 62796^2 + 120113^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 18370470385 - 2¹ = 18370470383 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18370470383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108061506 + ... + 108061675.

It is an arithmetic number, because the mean of its divisors is an integer number (2917662957).

Almost surely, 2^18370470385 is an apocalyptic number.

It is an amenable number.

18370470385 is a deficient number, since it is larger than the sum of its proper divisors (4970833271).

18370470385 is a wasteful number, since it uses less digits than its factorization.

18370470385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216123203.

The product of its (nonzero) digits is 564480, while the sum is 46.

The spelling of 18370470385 in words is "eighteen billion, three hundred seventy million, four hundred seventy thousand, three hundred eighty-five".