845118387 has 16 divisors (see below), whose sum is σ = 1254134560. Its totient is φ = 562464000.

The previous prime is 845118383. The next prime is 845118389. The reversal of 845118387 is 783811548.

It is a happy number.

It is not a de Polignac number, because 845118387 - 2² = 845118383 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (845118383) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9814 + ... + 42267.

It is an arithmetic number, because the mean of its divisors is an integer number (78383410).

Almost surely, 2^845118387 is an apocalyptic number.

845118387 is a deficient number, since it is larger than the sum of its proper divisors (409016173).

845118387 is a wasteful number, since it uses less digits than its factorization.

845118387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52691 (or 52685 counting only the distinct ones).

The product of its digits is 215040, while the sum is 45.

The square root of 845118387 is about 29070.9199544837. The cubic root of 845118387 is about 945.4513439849.

The spelling of 845118387 in words is "eight hundred forty-five million, one hundred eighteen thousand, three hundred eighty-seven".