788118963221 has 8 divisors (see below), whose sum is σ = 834491395224. Its totient is φ = 741747919360.

The previous prime is 788118963199. The next prime is 788118963239. The reversal of 788118963221 is 122369811887.

It can be written as a sum of positive squares in 4 ways, for example, as 3147771025 + 784971192196 = 56105^2 + 885986^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 788118963221 - 2¹⁴ = 788118946837 is a prime.

It is a super-2 number, since 2×788118963221² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (788118960221) 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, 963251 + ... + 1582431.

It is an arithmetic number, because the mean of its divisors is an integer number (104311424403).

Almost surely, 2^788118963221 is an apocalyptic number.

It is an amenable number.

788118963221 is a deficient number, since it is larger than the sum of its proper divisors (46372432003).

788118963221 is a wasteful number, since it uses less digits than its factorization.

788118963221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 694071.

The product of its digits is 2322432, while the sum is 56.

The spelling of 788118963221 in words is "seven hundred eighty-eight billion, one hundred eighteen million, nine hundred sixty-three thousand, two hundred twenty-one".