845099811 has 14 divisors (see below), whose sum is σ = 1267071180. Its totient is φ = 563399388.

The previous prime is 845099779. The next prime is 845099821. The reversal of 845099811 is 118990548.

It is not a de Polignac number, because 845099811 - 2⁵ = 845099779 is a prime.

It is a super-3 number, since 3×845099811³ (a number of 28 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (845099821) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 578901 + ... + 580358.

Almost surely, 2^845099811 is an apocalyptic number.

845099811 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

845099811 is a deficient number, since it is larger than the sum of its proper divisors (421971369).

845099811 is an equidigital number, since it uses as much as digits as its factorization.

845099811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1159277 (or 1159262 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 45.

The square root of 845099811 is about 29070.6004581949. The cubic root of 845099811 is about 945.4444168162. Note that the first 4 decimals are identical.

The spelling of 845099811 in words is "eight hundred forty-five million, ninety-nine thousand, eight hundred eleven".