26282705727257 has 8 divisors (see below), whose sum is σ = 30037486919232. Its totient is φ = 22527951771600.

The previous prime is 26282705727211. The next prime is 26282705727263. The reversal of 26282705727257 is 75272750728262.

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 26282705727257 - 2²⁸ = 26282437291801 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 26282705727257.

It is not an unprimeable number, because it can be changed into a prime (26282705727277) 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, 4697594 + ... + 8639027.

It is an arithmetic number, because the mean of its divisors is an integer number (3754685864904).

Almost surely, 2^{26282705727257} is an apocalyptic number.

It is an amenable number.

26282705727257 is a deficient number, since it is larger than the sum of its proper divisors (3754781191975).

26282705727257 is a wasteful number, since it uses less digits than its factorization.

26282705727257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13618159.

The product of its (nonzero) digits is 92198400, while the sum is 62.

The spelling of 26282705727257 in words is "twenty-six trillion, two hundred eighty-two billion, seven hundred five million, seven hundred twenty-seven thousand, two hundred fifty-seven".