2831612820 has 48 divisors (see below), whose sum is σ = 8394902208. Its totient is φ = 710679040.

The previous prime is 2831612789. The next prime is 2831612831. The reversal of 2831612820 is 282161382.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1387026 + ... + 1389065.

It is an arithmetic number, because the mean of its divisors is an integer number (174893796).

Almost surely, 2^2831612820 is an apocalyptic number.

2831612820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2831612820 is an abundant number, since it is smaller than the sum of its proper divisors (5563289388).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2831612820 is a wasteful number, since it uses less digits than its factorization.

2831612820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2776120 (or 2776118 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 2831612820 is about 53212.9008793920. The cubic root of 2831612820 is about 1414.7443123683.

The spelling of 2831612820 in words is "two billion, eight hundred thirty-one million, six hundred twelve thousand, eight hundred twenty".