2139732863 has 8 divisors (see below), whose sum is σ = 2267673408. Its totient is φ = 2012022784.

The previous prime is 2139732811. The next prime is 2139732869. The reversal of 2139732863 is 3682379312.

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 2139732863 - 2⁶ = 2139732799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2139732869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38306 + ... + 75807.

It is an arithmetic number, because the mean of its divisors is an integer number (283459176).

Almost surely, 2^2139732863 is an apocalyptic number.

2139732863 is a deficient number, since it is larger than the sum of its proper divisors (127940545).

2139732863 is a wasteful number, since it uses less digits than its factorization.

2139732863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115233.

The product of its digits is 326592, while the sum is 44.

The square root of 2139732863 is about 46257.2465998572. The cubic root of 2139732863 is about 1288.6051190599.

The spelling of 2139732863 in words is "two billion, one hundred thirty-nine million, seven hundred thirty-two thousand, eight hundred sixty-three".