69778887796 has 6 divisors (see below), whose sum is σ = 122113053650. Its totient is φ = 34889443896.

The previous prime is 69778887791. The next prime is 69778887797.

It is a happy number.

69778887796 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in only one way, i.e., 55098172900 + 14680714896 = 234730^2 + 121164^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69778887791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8722360971 + ... + 8722360978.

Almost surely, 2^69778887796 is an apocalyptic number.

It is an amenable number.

69778887796 is a deficient number, since it is larger than the sum of its proper divisors (52334165854).

69778887796 is a wasteful number, since it uses less digits than its factorization.

69778887796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17444721953 (or 17444721951 counting only the distinct ones).

The product of its digits is 3584673792, while the sum is 82.

The spelling of 69778887796 in words is "sixty-nine billion, seven hundred seventy-eight million, eight hundred eighty-seven thousand, seven hundred ninety-six".