25903830677 has 4 divisors (see below), whose sum is σ = 25927662336. Its totient is φ = 25879999020.

The previous prime is 25903830649. The next prime is 25903830683. The reversal of 25903830677 is 77603830952.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25903830677 - 2²⁴ = 25887053461 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 (25903838677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11914199 + ... + 11916372.

It is an arithmetic number, because the mean of its divisors is an integer number (6481915584).

Almost surely, 2^25903830677 is an apocalyptic number.

It is an amenable number.

25903830677 is a deficient number, since it is larger than the sum of its proper divisors (23831659).

25903830677 is a wasteful number, since it uses less digits than its factorization.

25903830677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23831658.

The product of its (nonzero) digits is 1905120, while the sum is 50.

The spelling of 25903830677 in words is "twenty-five billion, nine hundred three million, eight hundred thirty thousand, six hundred seventy-seven".