618854385 has 32 divisors (see below), whose sum is σ = 1005758208. Its totient is φ = 324898560.

The previous prime is 618854381. The next prime is 618854387. The reversal of 618854385 is 583458816.

It is not a de Polignac number, because 618854385 - 2² = 618854381 is a prime.

It is not an unprimeable number, because it can be changed into a prime (618854381) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 278539 + ... + 280751.

It is an arithmetic number, because the mean of its divisors is an integer number (31429944).

Almost surely, 2^618854385 is an apocalyptic number.

It is an amenable number.

618854385 is a deficient number, since it is larger than the sum of its proper divisors (386903823).

618854385 is a wasteful number, since it uses less digits than its factorization.

618854385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2505.

The product of its digits is 921600, while the sum is 48.

The square root of 618854385 is about 24876.7840566260. The cubic root of 618854385 is about 852.1763766194.

The spelling of 618854385 in words is "six hundred eighteen million, eight hundred fifty-four thousand, three hundred eighty-five".