6609372987 has 32 divisors (see below), whose sum is σ = 10373184000. Its totient is φ = 3741425184.

The previous prime is 6609372983. The next prime is 6609373019. The reversal of 6609372987 is 7892739066.

It is a happy number.

6609372987 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6609372987 - 2² = 6609372983 is a prime.

It is a super-2 number, since 2×6609372987² = 87367622562570604338, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6609372983) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 80089 + ... + 140117.

It is an arithmetic number, because the mean of its divisors is an integer number (324162000).

Almost surely, 2^6609372987 is an apocalyptic number.

6609372987 is a deficient number, since it is larger than the sum of its proper divisors (3763811013).

6609372987 is a wasteful number, since it uses less digits than its factorization.

6609372987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60160 (or 60146 counting only the distinct ones).

The product of its (nonzero) digits is 6858432, while the sum is 57.

The square root of 6609372987 is about 81298.0503271757. The cubic root of 6609372987 is about 1876.6649968524.

The spelling of 6609372987 in words is "six billion, six hundred nine million, three hundred seventy-two thousand, nine hundred eighty-seven".