7887992412 has 48 divisors (see below), whose sum is σ = 18852753920. Its totient is φ = 2565537408.

The previous prime is 7887992389. The next prime is 7887992417. The reversal of 7887992412 is 2142997887.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7887992417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 528768 + ... + 543480.

Almost surely, 2^7887992412 is an apocalyptic number.

It is an amenable number.

7887992412 is an abundant number, since it is smaller than the sum of its proper divisors (10964761508).

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

7887992412 is a wasteful number, since it uses less digits than its factorization.

7887992412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15802 (or 15800 counting only the distinct ones).

The product of its digits is 4064256, while the sum is 57.

The square root of 7887992412 is about 88814.3705263962. The cubic root of 7887992412 is about 1990.6221308460.

The spelling of 7887992412 in words is "seven billion, eight hundred eighty-seven million, nine hundred ninety-two thousand, four hundred twelve".