694683210842 has 16 divisors (see below), whose sum is σ = 1062083898792. Its totient is φ = 340718622720.

The previous prime is 694683210821. The next prime is 694683210901. The reversal of 694683210842 is 248012386496.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 134836574401 + 559846636441 = 367201^2 + 748229^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15822509 + ... + 15866352.

Almost surely, 2^694683210842 is an apocalyptic number.

694683210842 is a deficient number, since it is larger than the sum of its proper divisors (367400687950).

694683210842 is a wasteful number, since it uses less digits than its factorization.

694683210842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31689073.

The product of its (nonzero) digits is 3981312, while the sum is 53.

The spelling of 694683210842 in words is "six hundred ninety-four billion, six hundred eighty-three million, two hundred ten thousand, eight hundred forty-two".