7987344519 has 48 divisors (see below), whose sum is σ = 13648853376. Its totient is φ = 4108104000.

The previous prime is 7987344509. The next prime is 7987344523. The reversal of 7987344519 is 9154437897.

It is a happy number.

It is not a de Polignac number, because 7987344519 - 2⁸ = 7987344263 is a prime.

It is a super-2 number, since 2×7987344519² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7987344509) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 138864 + ... + 187770.

It is an arithmetic number, because the mean of its divisors is an integer number (284351112).

Almost surely, 2^7987344519 is an apocalyptic number.

7987344519 is a deficient number, since it is larger than the sum of its proper divisors (5661508857).

7987344519 is a wasteful number, since it uses less digits than its factorization.

7987344519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49036 (or 49029 counting only the distinct ones).

The product of its digits is 7620480, while the sum is 57.

The square root of 7987344519 is about 89371.9448093192. The cubic root of 7987344519 is about 1998.9448199788.

The spelling of 7987344519 in words is "seven billion, nine hundred eighty-seven million, three hundred forty-four thousand, five hundred nineteen".