697326978356 has 12 divisors (see below), whose sum is σ = 1226105731200. Its totient is φ = 347011055160.

The previous prime is 697326978329. The next prime is 697326978373. The reversal of 697326978356 is 653879623796.

697326978356 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 697326978356.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 413107556 + ... + 413109243.

It is an arithmetic number, because the mean of its divisors is an integer number (102175477600).

Almost surely, 2^697326978356 is an apocalyptic number.

It is an amenable number.

697326978356 is a deficient number, since it is larger than the sum of its proper divisors (528778752844).

697326978356 is a wasteful number, since it uses less digits than its factorization.

697326978356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 826217014 (or 826217012 counting only the distinct ones).

The product of its digits is 617258880, while the sum is 71.

The spelling of 697326978356 in words is "six hundred ninety-seven billion, three hundred twenty-six million, nine hundred seventy-eight thousand, three hundred fifty-six".