697788887796 has 288 divisors, whose sum is σ = 2371573870848. Its totient is φ = 167067463680.

The previous prime is 697788887743. The next prime is 697788887801.

697788887796 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 26401180 + ... + 26427596.

It is an arithmetic number, because the mean of its divisors is an integer number (8234631496).

Almost surely, 2^697788887796 is an apocalyptic number.

697788887796 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 697788887796, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1185786935424).

697788887796 is an abundant number, since it is smaller than the sum of its proper divisors (1673784983052).

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

697788887796 is a wasteful number, since it uses less digits than its factorization.

697788887796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27191 (or 27186 counting only the distinct ones).

The product of its digits is 28677390336, while the sum is 90.

The spelling of 697788887796 in words is "six hundred ninety-seven billion, seven hundred eighty-eight million, eight hundred eighty-seven thousand, seven hundred ninety-six".