697968805218 has 16 divisors (see below), whose sum is σ = 1416772500960. Its totient is φ = 229183786656.

The previous prime is 697968805211. The next prime is 697968805241. The reversal of 697968805218 is 812508869796.

It is not an unprimeable number, because it can be changed into a prime (697968805211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 868120003 + ... + 868120806.

It is an arithmetic number, because the mean of its divisors is an integer number (88548281310).

Almost surely, 2^697968805218 is an apocalyptic number.

697968805218 is an abundant number, since it is smaller than the sum of its proper divisors (718803695742).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

697968805218 is a wasteful number, since it uses less digits than its factorization.

697968805218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1736240881.

The product of its (nonzero) digits is 104509440, while the sum is 69.

The spelling of 697968805218 in words is "six hundred ninety-seven billion, nine hundred sixty-eight million, eight hundred five thousand, two hundred eighteen".