4321139687 has 2 divisors, whose sum is σ = 4321139688. Its totient is φ = 4321139686.

The previous prime is 4321139653. The next prime is 4321139689. The reversal of 4321139687 is 7869311234.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4321139687 - 2⁶ = 4321139623 is a prime.

Together with 4321139689, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4321139689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2160569843 + 2160569844.

It is an arithmetic number, because the mean of its divisors is an integer number (2160569844).

Almost surely, 2^4321139687 is an apocalyptic number.

4321139687 is a deficient number, since it is larger than the sum of its proper divisors (1).

4321139687 is an equidigital number, since it uses as much as digits as its factorization.

4321139687 is an evil number, because the sum of its binary digits is even.

The product of its digits is 217728, while the sum is 44.

The square root of 4321139687 is about 65735.3762216358. The cubic root of 4321139687 is about 1628.7937789599.

The spelling of 4321139687 in words is "four billion, three hundred twenty-one million, one hundred thirty-nine thousand, six hundred eighty-seven".