4812665805 has 24 divisors (see below), whose sum is σ = 8401979040. Its totient is φ = 2548285920.

The previous prime is 4812665749. The next prime is 4812665807. The reversal of 4812665805 is 5085662184.

4812665805 is a `hidden beast` number, since 4 + 8 + 1 + 2 + 66 + 580 + 5 = 666.

It is not a de Polignac number, because 4812665805 - 2¹⁷ = 4812534733 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4812665807) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 378451 + ... + 390960.

It is an arithmetic number, because the mean of its divisors is an integer number (350082460).

Almost surely, 2^4812665805 is an apocalyptic number.

4812665805 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4812665805 is a deficient number, since it is larger than the sum of its proper divisors (3589313235).

4812665805 is a wasteful number, since it uses less digits than its factorization.

4812665805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 769561 (or 769558 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 45.

The square root of 4812665805 is about 69373.3796567531. The cubic root of 4812665805 is about 1688.3477432691.

The spelling of 4812665805 in words is "four billion, eight hundred twelve million, six hundred sixty-five thousand, eight hundred five".