6607346891 has 4 divisors (see below), whose sum is σ = 6785923872. Its totient is φ = 6428769912.

The previous prime is 6607346861. The next prime is 6607346927. The reversal of 6607346891 is 1986437066.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1986437066 = 2 ⋅993218533.

It is a cyclic number.

It is not a de Polignac number, because 6607346891 - 2²⁶ = 6540238027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6607346861) 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, 89288435 + ... + 89288508.

It is an arithmetic number, because the mean of its divisors is an integer number (1696480968).

Almost surely, 2^6607346891 is an apocalyptic number.

6607346891 is a deficient number, since it is larger than the sum of its proper divisors (178576981).

6607346891 is a wasteful number, since it uses less digits than its factorization.

6607346891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178576980.

The product of its (nonzero) digits is 1306368, while the sum is 50.

The square root of 6607346891 is about 81285.5884582255. The cubic root of 6607346891 is about 1876.4732140591.

The spelling of 6607346891 in words is "six billion, six hundred seven million, three hundred forty-six thousand, eight hundred ninety-one".