25344080643 has 8 divisors (see below), whose sum is σ = 38619551488. Its totient is φ = 14482331784.

The previous prime is 25344080603. The next prime is 25344080647. The reversal of 25344080643 is 34608044352.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25344080643 - 2⁸ = 25344080387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25344080647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 603430471 + ... + 603430512.

It is an arithmetic number, because the mean of its divisors is an integer number (4827443936).

Almost surely, 2^25344080643 is an apocalyptic number.

25344080643 is a deficient number, since it is larger than the sum of its proper divisors (13275470845).

25344080643 is a wasteful number, since it uses less digits than its factorization.

25344080643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1206860993.

The product of its (nonzero) digits is 276480, while the sum is 39.

The spelling of 25344080643 in words is "twenty-five billion, three hundred forty-four million, eighty thousand, six hundred forty-three".