2831642646 has 16 divisors (see below), whose sum is σ = 6472326144. Its totient is φ = 809040744.

The previous prime is 2831642591. The next prime is 2831642651. The reversal of 2831642646 is 6462461382.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 67420063 = 2831642646 / (2 + 8 + 3 + 1 + 6 + 4 + 2 + 6 + 4 + 6).

It is a junction number, because it is equal to n+sod(n) for n = 2831642598 and 2831642607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33709990 + ... + 33710073.

It is an arithmetic number, because the mean of its divisors is an integer number (404520384).

Almost surely, 2^2831642646 is an apocalyptic number.

2831642646 is an abundant number, since it is smaller than the sum of its proper divisors (3640683498).

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

2831642646 is a wasteful number, since it uses less digits than its factorization.

2831642646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67420075.

The product of its digits is 331776, while the sum is 42.

The square root of 2831642646 is about 53213.1811302425. The cubic root of 2831642646 is about 1414.7492796218.

The spelling of 2831642646 in words is "two billion, eight hundred thirty-one million, six hundred forty-two thousand, six hundred forty-six".