25672128215 has 8 divisors (see below), whose sum is σ = 30807440640. Its totient is φ = 20537111392.

The previous prime is 25672128169. The next prime is 25672128233. The reversal of 25672128215 is 51282127652.

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 25672128215 - 2²² = 25667933911 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 233162 + ... + 325128.

It is an arithmetic number, because the mean of its divisors is an integer number (3850930080).

Almost surely, 2^25672128215 is an apocalyptic number.

25672128215 is a deficient number, since it is larger than the sum of its proper divisors (5135312425).

25672128215 is an equidigital number, since it uses as much as digits as its factorization.

25672128215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147801.

The product of its digits is 134400, while the sum is 41.

The spelling of 25672128215 in words is "twenty-five billion, six hundred seventy-two million, one hundred twenty-eight thousand, two hundred fifteen".