83891329607 has 2 divisors, whose sum is σ = 83891329608. Its totient is φ = 83891329606.

The previous prime is 83891329589. The next prime is 83891329609. The reversal of 83891329607 is 70692319838.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 83891329607 - 2⁸ = 83891329351 is a prime.

Together with 83891329609, 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 (83891329609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41945664803 + 41945664804.

It is an arithmetic number, because the mean of its divisors is an integer number (41945664804).

Almost surely, 2^83891329607 is an apocalyptic number.

83891329607 is a deficient number, since it is larger than the sum of its proper divisors (1).

83891329607 is an equidigital number, since it uses as much as digits as its factorization.

83891329607 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3919104, while the sum is 56.

The spelling of 83891329607 in words is "eighty-three billion, eight hundred ninety-one million, three hundred twenty-nine thousand, six hundred seven".