2668825407 has 4 divisors (see below), whose sum is σ = 3558433880. Its totient is φ = 1779216936.

The previous prime is 2668825363. The next prime is 2668825459. The reversal of 2668825407 is 7045288662.

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

It is not a de Polignac number, because 2668825407 - 2⁷ = 2668825279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2668825007) 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, 444804232 + ... + 444804237.

It is an arithmetic number, because the mean of its divisors is an integer number (889608470).

Almost surely, 2^2668825407 is an apocalyptic number.

2668825407 is a deficient number, since it is larger than the sum of its proper divisors (889608473).

2668825407 is an equidigital number, since it uses as much as digits as its factorization.

2668825407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 889608472.

The product of its (nonzero) digits is 1290240, while the sum is 48.

The square root of 2668825407 is about 51660.6756343740. The cubic root of 2668825407 is about 1387.0966445096.

The spelling of 2668825407 in words is "two billion, six hundred sixty-eight million, eight hundred twenty-five thousand, four hundred seven".