26780745 has 16 divisors (see below), whose sum is σ = 44232192. Its totient is φ = 13822080.

The previous prime is 26780693. The next prime is 26780759. The reversal of 26780745 is 54708762.

It is not a de Polignac number, because 26780745 - 2¹³ = 26772553 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28332 + ... + 29261.

It is an arithmetic number, because the mean of its divisors is an integer number (2764512).

Almost surely, 2^26780745 is an apocalyptic number.

It is an amenable number.

26780745 is a deficient number, since it is larger than the sum of its proper divisors (17451447).

26780745 is a wasteful number, since it uses less digits than its factorization.

26780745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57632.

The product of its (nonzero) digits is 94080, while the sum is 39.

The square root of 26780745 is about 5175.0115941899. The cubic root of 26780745 is about 299.1857363597.

The spelling of 26780745 in words is "twenty-six million, seven hundred eighty thousand, seven hundred forty-five".