6604136747 has 4 divisors (see below), whose sum is σ = 7112147280. Its totient is φ = 6096126216.

The previous prime is 6604136731. The next prime is 6604136753. The reversal of 6604136747 is 7476314066.

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 6604136747 - 2⁴ = 6604136731 is a prime.

It is a super-2 number, since 2×6604136747² = 87229244346151484018, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6604136698 and 6604136707.

It is not an unprimeable number, because it can be changed into a prime (6604136767) 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, 254005247 + ... + 254005272.

It is an arithmetic number, because the mean of its divisors is an integer number (1778036820).

Almost surely, 2^6604136747 is an apocalyptic number.

6604136747 is a deficient number, since it is larger than the sum of its proper divisors (508010533).

6604136747 is a wasteful number, since it uses less digits than its factorization.

6604136747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508010532.

The product of its (nonzero) digits is 508032, while the sum is 44.

The square root of 6604136747 is about 81265.8399759702. The cubic root of 6604136747 is about 1876.1692733535.

The spelling of 6604136747 in words is "six billion, six hundred four million, one hundred thirty-six thousand, seven hundred forty-seven".