696778877696 has 144 divisors (see below), whose sum is σ = 1533816684288. Its totient is φ = 313274265600.

The previous prime is 696778877689. The next prime is 696778877713.

696778877696 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 257017781 + ... + 257020491.

It is an arithmetic number, because the mean of its divisors is an integer number (10651504752).

Almost surely, 2^696778877696 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 696778877696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (766908342144).

696778877696 is an abundant number, since it is smaller than the sum of its proper divisors (837037806592).

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

696778877696 is a wasteful number, since it uses less digits than its factorization.

696778877696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3698 (or 3684 counting only the distinct ones).

The product of its digits is 16131032064, while the sum is 86.

The spelling of 696778877696 in words is "six hundred ninety-six billion, seven hundred seventy-eight million, eight hundred seventy-seven thousand, six hundred ninety-six".