84375844857259 has 2 divisors, whose sum is σ = 84375844857260. Its totient is φ = 84375844857258.

The previous prime is 84375844857257. The next prime is 84375844857349. The reversal of 84375844857259 is 95275844857348.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 84375844857259 - 2¹ = 84375844857257 is a prime.

Together with 84375844857257, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (84375844857257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42187922428629 + 42187922428630.

It is an arithmetic number, because the mean of its divisors is an integer number (42187922428630).

Almost surely, 2^{84375844857259} is an apocalyptic number.

84375844857259 is a deficient number, since it is larger than the sum of its proper divisors (1).

84375844857259 is an equidigital number, since it uses as much as digits as its factorization.

84375844857259 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10838016000, while the sum is 79.

The spelling of 84375844857259 in words is "eighty-four trillion, three hundred seventy-five billion, eight hundred forty-four million, eight hundred fifty-seven thousand, two hundred fifty-nine".