2684159939 has 2 divisors, whose sum is σ = 2684159940. Its totient is φ = 2684159938.

The previous prime is 2684159923. The next prime is 2684159977. The reversal of 2684159939 is 9399514862.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2684159939 - 2⁴ = 2684159923 is a prime.

It is not a weakly prime, because it can be changed into another prime (2684150939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1342079969 + 1342079970.

It is an arithmetic number, because the mean of its divisors is an integer number (1342079970).

Almost surely, 2^2684159939 is an apocalyptic number.

2684159939 is a deficient number, since it is larger than the sum of its proper divisors (1).

2684159939 is an equidigital number, since it uses as much as digits as its factorization.

2684159939 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4199040, while the sum is 56.

The square root of 2684159939 is about 51808.8789591128. The cubic root of 2684159939 is about 1389.7482315772.

The spelling of 2684159939 in words is "two billion, six hundred eighty-four million, one hundred fifty-nine thousand, nine hundred thirty-nine".