2664146847 has 4 divisors (see below), whose sum is σ = 3552195800. Its totient is φ = 1776097896.

The previous prime is 2664146843. The next prime is 2664146861. The reversal of 2664146847 is 7486414662.

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

It is not a de Polignac number, because 2664146847 - 2² = 2664146843 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2664146796 and 2664146805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2664146843) 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, 444024472 + ... + 444024477.

It is an arithmetic number, because the mean of its divisors is an integer number (888048950).

Almost surely, 2^2664146847 is an apocalyptic number.

2664146847 is a deficient number, since it is larger than the sum of its proper divisors (888048953).

2664146847 is an equidigital number, since it uses as much as digits as its factorization.

2664146847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 888048952.

The product of its digits is 1548288, while the sum is 48.

The square root of 2664146847 is about 51615.3741340698. The cubic root of 2664146847 is about 1386.2856247073.

The spelling of 2664146847 in words is "two billion, six hundred sixty-four million, one hundred forty-six thousand, eight hundred forty-seven".