694331820043 has 2 divisors, whose sum is σ = 694331820044. Its totient is φ = 694331820042.

The previous prime is 694331819989. The next prime is 694331820059. The reversal of 694331820043 is 340028133496.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 694331820043 - 2¹³ = 694331811851 is a prime.

It is not a weakly prime, because it can be changed into another prime (694331826043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 347165910021 + 347165910022.

It is an arithmetic number, because the mean of its divisors is an integer number (347165910022).

Almost surely, 2^694331820043 is an apocalyptic number.

694331820043 is a deficient number, since it is larger than the sum of its proper divisors (1).

694331820043 is an equidigital number, since it uses as much as digits as its factorization.

694331820043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 373248, while the sum is 43.

The spelling of 694331820043 in words is "six hundred ninety-four billion, three hundred thirty-one million, eight hundred twenty thousand, forty-three".