2829813861 has 8 divisors (see below), whose sum is σ = 4312097344. Its totient is φ = 1617036480.

The previous prime is 2829813853. The next prime is 2829813871. The reversal of 2829813861 is 1683189282.

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

It is not a de Polignac number, because 2829813861 - 2³ = 2829813853 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2829813861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2829813841) 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, 67376500 + ... + 67376541.

It is an arithmetic number, because the mean of its divisors is an integer number (539012168).

Almost surely, 2^2829813861 is an apocalyptic number.

2829813861 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2829813861 is a deficient number, since it is larger than the sum of its proper divisors (1482283483).

2829813861 is a wasteful number, since it uses less digits than its factorization.

2829813861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134753051.

The product of its digits is 331776, while the sum is 48.

The square root of 2829813861 is about 53195.9947834421. The cubic root of 2829813861 is about 1414.4446473203. Note that the first 3 decimals are identical.

The spelling of 2829813861 in words is "two billion, eight hundred twenty-nine million, eight hundred thirteen thousand, eight hundred sixty-one".