25899381093 has 8 divisors (see below), whose sum is σ = 34969628800. Its totient is φ = 17047693728.

The previous prime is 25899381091. The next prime is 25899381097. The reversal of 25899381093 is 39018399852.

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

It is not a de Polignac number, because 25899381093 - 2¹ = 25899381091 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25899381091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54639808 + ... + 54640281.

It is an arithmetic number, because the mean of its divisors is an integer number (4371203600).

Almost surely, 2^25899381093 is an apocalyptic number.

It is an amenable number.

25899381093 is a deficient number, since it is larger than the sum of its proper divisors (9070247707).

25899381093 is a wasteful number, since it uses less digits than its factorization.

25899381093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109280171.

The product of its (nonzero) digits is 4199040, while the sum is 57.

The spelling of 25899381093 in words is "twenty-five billion, eight hundred ninety-nine million, three hundred eighty-one thousand, ninety-three".