2805829656 has 64 divisors (see below), whose sum is σ = 8042419200. Its totient is φ = 799089408.

The previous prime is 2805829643. The next prime is 2805829661. The reversal of 2805829656 is 6569285082.

It is a junction number, because it is equal to n+sod(n) for n = 2805829599 and 2805829608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25905 + ... + 79263.

It is an arithmetic number, because the mean of its divisors is an integer number (125662800).

Almost surely, 2^2805829656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2805829656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4021209600).

2805829656 is an abundant number, since it is smaller than the sum of its proper divisors (5236589544).

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

2805829656 is a wasteful number, since it uses less digits than its factorization.

2805829656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53688 (or 53684 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 51.

The square root of 2805829656 is about 52970.0826504924. The cubic root of 2805829656 is about 1410.4372427979.

The spelling of 2805829656 in words is "two billion, eight hundred five million, eight hundred twenty-nine thousand, six hundred fifty-six".