2861861530 has 16 divisors (see below), whose sum is σ = 5619655584. Its totient is φ = 1040676880.

The previous prime is 2861861521. The next prime is 2861861551. The reversal of 2861861530 is 351681682.

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, 13008352 + ... + 13008571.

It is an arithmetic number, because the mean of its divisors is an integer number (351228474).

Almost surely, 2^2861861530 is an apocalyptic number.

2861861530 is a deficient number, since it is larger than the sum of its proper divisors (2757794054).

2861861530 is a wasteful number, since it uses less digits than its factorization.

2861861530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26016941.

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 2861861530 is about 53496.3693160573. The cubic root of 2861861530 is about 1419.7641494823.

The spelling of 2861861530 in words is "two billion, eight hundred sixty-one million, eight hundred sixty-one thousand, five hundred thirty".