2861966939 has 8 divisors (see below), whose sum is σ = 3083739792. Its totient is φ = 2640425760.

The previous prime is 2861966929. The next prime is 2861966959. The reversal of 2861966939 is 9396691682.

2861966939 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2861966939 - 2¹² = 2861962843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2861966929) 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, 31817 + ... + 82074.

It is an arithmetic number, because the mean of its divisors is an integer number (385467474).

Almost surely, 2^2861966939 is an apocalyptic number.

2861966939 is a deficient number, since it is larger than the sum of its proper divisors (221772853).

2861966939 is a wasteful number, since it uses less digits than its factorization.

2861966939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115837.

The product of its digits is 7558272, while the sum is 59.

The square root of 2861966939 is about 53497.3545046856. The cubic root of 2861966939 is about 1419.7815803376.

The spelling of 2861966939 in words is "two billion, eight hundred sixty-one million, nine hundred sixty-six thousand, nine hundred thirty-nine".