7987344437897 has 24 divisors (see below), whose sum is σ = 9333056369280. Its totient is φ = 6810942996000.

The previous prime is 7987344437869. The next prime is 7987344437927.

7987344437897 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 7987344437897 - 2³⁴ = 7970164568713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7987344437197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16967153 + ... + 17431550.

It is an arithmetic number, because the mean of its divisors is an integer number (388877348720).

Almost surely, 2^{7987344437897} is an apocalyptic number.

It is an amenable number.

7987344437897 is a deficient number, since it is larger than the sum of its proper divisors (1345711931383).

7987344437897 is a wasteful number, since it uses less digits than its factorization.

7987344437897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34398845 (or 34398834 counting only the distinct ones).

The product of its digits is 7169347584, while the sum is 80.

The spelling of 7987344437897 in words is "seven trillion, nine hundred eighty-seven billion, three hundred forty-four million, four hundred thirty-seven thousand, eight hundred ninety-seven".