2139911567 has 8 divisors (see below), whose sum is σ = 2266219296. Its totient is φ = 2013651712.

The previous prime is 2139911489. The next prime is 2139911581. The reversal of 2139911567 is 7651199312.

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 2139911567 - 2¹⁶ = 2139846031 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 (2139911597) 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, 124838 + ... + 140940.

It is an arithmetic number, because the mean of its divisors is an integer number (283277412).

Almost surely, 2^2139911567 is an apocalyptic number.

2139911567 is a deficient number, since it is larger than the sum of its proper divisors (126307729).

2139911567 is a wasteful number, since it uses less digits than its factorization.

2139911567 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23937.

The product of its digits is 102060, while the sum is 44.

The square root of 2139911567 is about 46259.1781920086. The cubic root of 2139911567 is about 1288.6409915252.

The spelling of 2139911567 in words is "two billion, one hundred thirty-nine million, nine hundred eleven thousand, five hundred sixty-seven".