25831673023 has 4 divisors (see below), whose sum is σ = 27818724808. Its totient is φ = 23844621240.

The previous prime is 25831673011. The next prime is 25831673029. The reversal of 25831673023 is 32037613852.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25831673023 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 (25831673029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 993525873 + ... + 993525898.

It is an arithmetic number, because the mean of its divisors is an integer number (6954681202).

Almost surely, 2^25831673023 is an apocalyptic number.

25831673023 is a deficient number, since it is larger than the sum of its proper divisors (1987051785).

25831673023 is a wasteful number, since it uses less digits than its factorization.

25831673023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1987051784.

The product of its (nonzero) digits is 181440, while the sum is 40.

The spelling of 25831673023 in words is "twenty-five billion, eight hundred thirty-one million, six hundred seventy-three thousand, twenty-three".