25862489097 has 8 divisors (see below), whose sum is σ = 35324375520. Its totient is φ = 16821131040.

The previous prime is 25862489089. The next prime is 25862489099. The reversal of 25862489097 is 79098426852.

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

It is not a de Polignac number, because 25862489097 - 2³ = 25862489089 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25862489097.

It is not an unprimeable number, because it can be changed into a prime (25862489099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105131947 + ... + 105132192.

It is an arithmetic number, because the mean of its divisors is an integer number (4415546940).

Almost surely, 2^25862489097 is an apocalyptic number.

It is an amenable number.

25862489097 is a deficient number, since it is larger than the sum of its proper divisors (9461886423).

25862489097 is a wasteful number, since it uses less digits than its factorization.

25862489097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210264183.

The product of its (nonzero) digits is 17418240, while the sum is 60.

The spelling of 25862489097 in words is "twenty-five billion, eight hundred sixty-two million, four hundred eighty-nine thousand, ninety-seven".