25357673484445 has 8 divisors (see below), whose sum is σ = 30431824017336. Its totient is φ = 20284394896896.

The previous prime is 25357673484427. The next prime is 25357673484491. The reversal of 25357673484445 is 54448437675352.

It can be written as a sum of positive squares in 4 ways, for example, as 7918714188441 + 17438959296004 = 2814021^2 + 4175998^2 .

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 25357673484445 - 2³⁷ = 25220234530973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 217922352 + ... + 218038681.

It is an arithmetic number, because the mean of its divisors is an integer number (3803978002167).

Almost surely, 2^{25357673484445} is an apocalyptic number.

It is an amenable number.

25357673484445 is a deficient number, since it is larger than the sum of its proper divisors (5074150532891).

25357673484445 is a wasteful number, since it uses less digits than its factorization.

25357673484445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435972671.

The product of its digits is 1354752000, while the sum is 67.

The spelling of 25357673484445 in words is "twenty-five trillion, three hundred fifty-seven billion, six hundred seventy-three million, four hundred eighty-four thousand, four hundred forty-five".