2820854729 has 24 divisors (see below), whose sum is σ = 3639365184. Its totient is φ = 2138637600.

The previous prime is 2820854719. The next prime is 2820854753. The reversal of 2820854729 is 9274580282.

It is not a de Polignac number, because 2820854729 - 2⁴ = 2820854713 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2820854719) 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, 13667 + ... + 76344.

It is an arithmetic number, because the mean of its divisors is an integer number (151640216).

Almost surely, 2^2820854729 is an apocalyptic number.

It is an amenable number.

2820854729 is a deficient number, since it is larger than the sum of its proper divisors (818510455).

2820854729 is a wasteful number, since it uses less digits than its factorization.

2820854729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90077 (or 90066 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 47.

The square root of 2820854729 is about 53111.7193188095. The cubic root of 2820854729 is about 1412.9503684501.

The spelling of 2820854729 in words is "two billion, eight hundred twenty million, eight hundred fifty-four thousand, seven hundred twenty-nine".