7871738371788 has 24 divisors (see below), whose sum is σ = 18863805468592. Its totient is φ = 2552996228544.

The previous prime is 7871738371787. The next prime is 7871738371793. The reversal of 7871738371788 is 8871738371787.

It is not an unprimeable number, because it can be changed into a prime (7871738371787) 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, 8864569795 + ... + 8864570682.

Almost surely, 2^{7871738371788} is an apocalyptic number.

It is an amenable number.

7871738371788 is an abundant number, since it is smaller than the sum of its proper divisors (10992067096804).

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

7871738371788 is a wasteful number, since it uses less digits than its factorization.

7871738371788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17729140521 (or 17729140519 counting only the distinct ones).

The product of its digits is 619573248, while the sum is 75.

Subtracting 7871738371788 from its reverse (8871738371787), we obtain a palindrome (999999999999).

The spelling of 7871738371788 in words is "seven trillion, eight hundred seventy-one billion, seven hundred thirty-eight million, three hundred seventy-one thousand, seven hundred eighty-eight".