859873613387 has 2 divisors, whose sum is σ = 859873613388. Its totient is φ = 859873613386.

The previous prime is 859873613383. The next prime is 859873613429. The reversal of 859873613387 is 783316378958.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 859873613387 - 2² = 859873613383 is a prime.

It is a super-2 number, since 2×859873613387² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (859873613383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 429936806693 + 429936806694.

It is an arithmetic number, because the mean of its divisors is an integer number (429936806694).

Almost surely, 2^859873613387 is an apocalyptic number.

859873613387 is a deficient number, since it is larger than the sum of its proper divisors (1).

859873613387 is an equidigital number, since it uses as much as digits as its factorization.

859873613387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 182891520, while the sum is 68.

The spelling of 859873613387 in words is "eight hundred fifty-nine billion, eight hundred seventy-three million, six hundred thirteen thousand, three hundred eighty-seven".