25982194139 has 8 divisors (see below), whose sum is σ = 29003380032. Its totient is φ = 23070869640.

The previous prime is 25982194129. The next prime is 25982194151. The reversal of 25982194139 is 93149128952.

It is a happy number.

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 25982194139 - 2¹⁶ = 25982128603 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25982194129) 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, 27464849 + ... + 27465794.

It is an arithmetic number, because the mean of its divisors is an integer number (3625422504).

Almost surely, 2^25982194139 is an apocalyptic number.

25982194139 is a deficient number, since it is larger than the sum of its proper divisors (3021185893).

25982194139 is a wasteful number, since it uses less digits than its factorization.

25982194139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54930697.

The product of its digits is 1399680, while the sum is 53.

The spelling of 25982194139 in words is "twenty-five billion, nine hundred eighty-two million, one hundred ninety-four thousand, one hundred thirty-nine".