25864228839 has 8 divisors (see below), whose sum is σ = 34608364272. Its totient is φ = 17181456320.

The previous prime is 25864228783. The next prime is 25864228843. The reversal of 25864228839 is 93882246852.

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

It is a cyclic number.

It is not a de Polignac number, because 25864228839 - 2⁷ = 25864228711 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25864268839) 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, 15339744 + ... + 15341429.

It is an arithmetic number, because the mean of its divisors is an integer number (4326045534).

Almost surely, 2^25864228839 is an apocalyptic number.

25864228839 is a deficient number, since it is larger than the sum of its proper divisors (8744135433).

25864228839 is a wasteful number, since it uses less digits than its factorization.

25864228839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30681457.

The product of its digits is 13271040, while the sum is 57.

The spelling of 25864228839 in words is "twenty-five billion, eight hundred sixty-four million, two hundred twenty-eight thousand, eight hundred thirty-nine".