1845897616 has 20 divisors (see below), whose sum is σ = 3582223600. Its totient is φ = 921452832.

The previous prime is 1845897539. The next prime is 1845897623. The reversal of 1845897616 is 6167985481.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83286 + ... + 103093.

It is an arithmetic number, because the mean of its divisors is an integer number (179111180).

Almost surely, 2^1845897616 is an apocalyptic number.

1845897616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1845897616 is a deficient number, since it is larger than the sum of its proper divisors (1736325984).

1845897616 is a wasteful number, since it uses less digits than its factorization.

1845897616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187006 (or 187000 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 55.

The square root of 1845897616 is about 42963.9106227541. The cubic root of 1845897616 is about 1226.6929508913.

The spelling of 1845897616 in words is "one billion, eight hundred forty-five million, eight hundred ninety-seven thousand, six hundred sixteen".