26257145445 has 24 divisors (see below), whose sum is σ = 45517563000. Its totient is φ = 14002217856.

The previous prime is 26257145419. The next prime is 26257145459. The reversal of 26257145445 is 54454175262.

26257145445 is a `hidden beast` number, since 2 + 62 + 5 + 7 + 145 + 445 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 6845411169 + 19411734276 = 82737^2 + 139326^2 .

It is not a de Polignac number, because 26257145445 - 2⁵ = 26257145413 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 26257145445.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 441331 + ... + 497279.

It is an arithmetic number, because the mean of its divisors is an integer number (1896565125).

Almost surely, 2^26257145445 is an apocalyptic number.

It is an amenable number.

26257145445 is a deficient number, since it is larger than the sum of its proper divisors (19260417555).

26257145445 is a wasteful number, since it uses less digits than its factorization.

26257145445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66389 (or 66386 counting only the distinct ones).

The product of its digits is 1344000, while the sum is 45.

The spelling of 26257145445 in words is "twenty-six billion, two hundred fifty-seven million, one hundred forty-five thousand, four hundred forty-five".