7881797334388 has 12 divisors (see below), whose sum is σ = 14519100352960. Its totient is φ = 3733482947832.

The previous prime is 7881797334373. The next prime is 7881797334403. The reversal of 7881797334388 is 8834337971887.

It is an interprime number because it is at equal distance from previous prime (7881797334373) and next prime (7881797334403).

It is a Harshad number since it is a multiple of its sum of digits (76), and also a Moran number because the ratio is a prime number: 103707859663 = 7881797334388 / (7 + 8 + 8 + 1 + 7 + 9 + 7 + 3 + 3 + 4 + 3 + 8 + 8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51853929756 + ... + 51853929907.

Almost surely, 2^{7881797334388} is an apocalyptic number.

It is an amenable number.

7881797334388 is a deficient number, since it is larger than the sum of its proper divisors (6637303018572).

7881797334388 is a wasteful number, since it uses less digits than its factorization.

7881797334388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103707859686 (or 103707859684 counting only the distinct ones).

The product of its digits is 1365590016, while the sum is 76.

The spelling of 7881797334388 in words is "seven trillion, eight hundred eighty-one billion, seven hundred ninety-seven million, three hundred thirty-four thousand, three hundred eighty-eight".