6677512147 has 4 divisors (see below), whose sum is σ = 6709159336. Its totient is φ = 6645864960.

The previous prime is 6677512141. The next prime is 6677512159. The reversal of 6677512147 is 7412157766.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6677512147 - 2³ = 6677512139 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6677512097 and 6677512106.

It is not an unprimeable number, because it can be changed into a prime (6677512141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15823278 + ... + 15823699.

It is an arithmetic number, because the mean of its divisors is an integer number (1677289834).

Almost surely, 2^6677512147 is an apocalyptic number.

6677512147 is a deficient number, since it is larger than the sum of its proper divisors (31647189).

6677512147 is a wasteful number, since it uses less digits than its factorization.

6677512147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31647188.

The product of its digits is 493920, while the sum is 46.

The square root of 6677512147 is about 81716.0458355640. The cubic root of 6677512147 is about 1883.0921035919.

The spelling of 6677512147 in words is "six billion, six hundred seventy-seven million, five hundred twelve thousand, one hundred forty-seven".