693857359768 has 8 divisors (see below), whose sum is σ = 1300982549580. Its totient is φ = 346928679880.

The previous prime is 693857359673. The next prime is 693857359817. The reversal of 693857359768 is 867953758396.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 693857359694 and 693857359703.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 43366084978 + ... + 43366084993.

Almost surely, 2^693857359768 is an apocalyptic number.

It is an amenable number.

693857359768 is a deficient number, since it is larger than the sum of its proper divisors (607125189812).

693857359768 is a wasteful number, since it uses less digits than its factorization.

693857359768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86732169977 (or 86732169973 counting only the distinct ones).

The product of its digits is 2057529600, while the sum is 76.

The spelling of 693857359768 in words is "six hundred ninety-three billion, eight hundred fifty-seven million, three hundred fifty-nine thousand, seven hundred sixty-eight".