25468693391 has 8 divisors (see below), whose sum is σ = 25527784368. Its totient is φ = 25409664000.

The previous prime is 25468693357. The next prime is 25468693423. The reversal of 25468693391 is 19339686452.

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 25468693391 - 2³⁴ = 8288824207 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 (25468693321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 870836 + ... + 899606.

It is an arithmetic number, because the mean of its divisors is an integer number (3190973046).

Almost surely, 2^25468693391 is an apocalyptic number.

25468693391 is a deficient number, since it is larger than the sum of its proper divisors (59090977).

25468693391 is a wasteful number, since it uses less digits than its factorization.

25468693391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30793.

The product of its digits is 8398080, while the sum is 56.

The spelling of 25468693391 in words is "twenty-five billion, four hundred sixty-eight million, six hundred ninety-three thousand, three hundred ninety-one".