2861642800 has 30 divisors (see below), whose sum is σ = 6875097788. Its totient is φ = 1144656960.

The previous prime is 2861642753. The next prime is 2861642809. The reversal of 2861642800 is 82461682.

It is a self number, because there is not a number n which added to its sum of digits gives 2861642800.

It is not an unprimeable number, because it can be changed into a prime (2861642809) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3576654 + ... + 3577453.

Almost surely, 2^2861642800 is an apocalyptic number.

2861642800 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2861642800 is an abundant number, since it is smaller than the sum of its proper divisors (4013454988).

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

2861642800 is a wasteful number, since it uses less digits than its factorization.

2861642800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7154125 (or 7154114 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 37.

The square root of 2861642800 is about 53494.3249326506. The cubic root of 2861642800 is about 1419.7279780463.

The spelling of 2861642800 in words is "two billion, eight hundred sixty-one million, six hundred forty-two thousand, eight hundred".