2831381064 has 48 divisors (see below), whose sum is σ = 8071923600. Its totient is φ = 894119904.

The previous prime is 2831381051. The next prime is 2831381071. The reversal of 2831381064 is 4601831382.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1033494 + ... + 1036229.

It is an arithmetic number, because the mean of its divisors is an integer number (168165075).

Almost surely, 2^2831381064 is an apocalyptic number.

2831381064 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2831381064 is an abundant number, since it is smaller than the sum of its proper divisors (5240542536).

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

2831381064 is a wasteful number, since it uses less digits than its factorization.

2831381064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2069754 (or 2069747 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 2831381064 is about 53210.7232050082. The cubic root of 2831381064 is about 1414.7057142914.

The spelling of 2831381064 in words is "two billion, eight hundred thirty-one million, three hundred eighty-one thousand, sixty-four".