26512444745 has 8 divisors (see below), whose sum is σ = 31829834184. Its totient is φ = 21200022144.

The previous prime is 26512444727. The next prime is 26512444759. The reversal of 26512444745 is 54744421562.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2811226441 + 23701218304 = 53021^2 + 153952^2 .

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 26512444745 - 2⁸ = 26512444489 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 26512444696 and 26512444705.

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, 1229954 + ... + 1251323.

It is an arithmetic number, because the mean of its divisors is an integer number (3978729273).

Almost surely, 2^26512444745 is an apocalyptic number.

It is an amenable number.

26512444745 is a deficient number, since it is larger than the sum of its proper divisors (5317389439).

26512444745 is a wasteful number, since it uses less digits than its factorization.

26512444745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2483419.

The product of its digits is 1075200, while the sum is 44.

The spelling of 26512444745 in words is "twenty-six billion, five hundred twelve million, four hundred forty-four thousand, seven hundred forty-five".