2831026661 has 8 divisors (see below), whose sum is σ = 2929246200. Its totient is φ = 2732847040.

The previous prime is 2831026637. The next prime is 2831026663. The reversal of 2831026661 is 1666201382.

2831026661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1238617636 + 1592409025 = 35194^2 + 39905^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2831026661 - 2²² = 2826832357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2831026663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 245771 + ... + 257031.

It is an arithmetic number, because the mean of its divisors is an integer number (366155775).

Almost surely, 2^2831026661 is an apocalyptic number.

It is an amenable number.

2831026661 is a deficient number, since it is larger than the sum of its proper divisors (98219539).

2831026661 is a wasteful number, since it uses less digits than its factorization.

2831026661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19959.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 2831026661 is about 53207.3929167743. The cubic root of 2831026661 is about 1414.6466857515.

The spelling of 2831026661 in words is "two billion, eight hundred thirty-one million, twenty-six thousand, six hundred sixty-one".