105971398859 has 2 divisors, whose sum is σ = 105971398860. Its totient is φ = 105971398858.

The previous prime is 105971398847. The next prime is 105971398861. The reversal of 105971398859 is 958893179501.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105971398859 is a prime.

It is a super-2 number, since 2×105971398859² (a number of 23 digits) contains 22 as substring.

Together with 105971398861, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 105971398795 and 105971398804.

It is not a weakly prime, because it can be changed into another prime (105971358859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52985699429 + 52985699430.

It is an arithmetic number, because the mean of its divisors is an integer number (52985699430).

Almost surely, 2^105971398859 is an apocalyptic number.

105971398859 is a deficient number, since it is larger than the sum of its proper divisors (1).

105971398859 is an equidigital number, since it uses as much as digits as its factorization.

105971398859 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24494400, while the sum is 65.

The spelling of 105971398859 in words is "one hundred five billion, nine hundred seventy-one million, three hundred ninety-eight thousand, eight hundred fifty-nine".