2861966938 has 4 divisors (see below), whose sum is σ = 4292950410. Its totient is φ = 1430983468.

The previous prime is 2861966929. The next prime is 2861966959. The reversal of 2861966938 is 8396691682.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2214925969 + 647040969 = 47063^2 + 25437^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 715491733 + ... + 715491736.

Almost surely, 2^2861966938 is an apocalyptic number.

2861966938 is a deficient number, since it is larger than the sum of its proper divisors (1430983472).

2861966938 is a wasteful number, since it uses less digits than its factorization.

2861966938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1430983471.

The product of its digits is 6718464, while the sum is 58.

The square root of 2861966938 is about 53497.3544953393. The cubic root of 2861966938 is about 1419.7815801722.

The spelling of 2861966938 in words is "two billion, eight hundred sixty-one million, nine hundred sixty-six thousand, nine hundred thirty-eight".