70001905859 has 2 divisors, whose sum is σ = 70001905860. Its totient is φ = 70001905858.

The previous prime is 70001905849. The next prime is 70001905871. The reversal of 70001905859 is 95850910007.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 70001905859 - 2¹² = 70001901763 is a prime.

It is not a weakly prime, because it can be changed into another prime (70001905849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35000952929 + 35000952930.

It is an arithmetic number, because the mean of its divisors is an integer number (35000952930).

Almost surely, 2^70001905859 is an apocalyptic number.

70001905859 is a deficient number, since it is larger than the sum of its proper divisors (1).

70001905859 is an equidigital number, since it uses as much as digits as its factorization.

70001905859 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 113400, while the sum is 44.

The spelling of 70001905859 in words is "seventy billion, one million, nine hundred five thousand, eight hundred fifty-nine".