25672128213 has 16 divisors (see below), whose sum is σ = 36340197696. Its totient is φ = 16064805120.

The previous prime is 25672128169. The next prime is 25672128233. The reversal of 25672128213 is 31282127652.

It is not a de Polignac number, because 25672128213 - 2⁶ = 25672128149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25672128233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 655743 + ... + 693788.

It is an arithmetic number, because the mean of its divisors is an integer number (2271262356).

Almost surely, 2^25672128213 is an apocalyptic number.

It is an amenable number.

25672128213 is a deficient number, since it is larger than the sum of its proper divisors (10668069483).

25672128213 is a wasteful number, since it uses less digits than its factorization.

25672128213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1349924.

The product of its digits is 80640, while the sum is 39.

The spelling of 25672128213 in words is "twenty-five billion, six hundred seventy-two million, one hundred twenty-eight thousand, two hundred thirteen".