1858940310859 has 2 divisors, whose sum is σ = 1858940310860. Its totient is φ = 1858940310858.

The previous prime is 1858940310763. The next prime is 1858940310883. The reversal of 1858940310859 is 9580130498581.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1858940310859 - 2²⁹ = 1858403439947 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1858940310797 and 1858940310806.

It is not a weakly prime, because it can be changed into another prime (1858940310659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 929470155429 + 929470155430.

It is an arithmetic number, because the mean of its divisors is an integer number (929470155430).

Almost surely, 2^{1858940310859} is an apocalyptic number.

1858940310859 is a deficient number, since it is larger than the sum of its proper divisors (1).

1858940310859 is an equidigital number, since it uses as much as digits as its factorization.

1858940310859 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12441600, while the sum is 61.

The spelling of 1858940310859 in words is "one trillion, eight hundred fifty-eight billion, nine hundred forty million, three hundred ten thousand, eight hundred fifty-nine".