26887759945 has 32 divisors (see below), whose sum is σ = 34042788864. Its totient is φ = 20360928000.

The previous prime is 26887759937. The next prime is 26887759961. The reversal of 26887759945 is 54995778862.

It is not a de Polignac number, because 26887759945 - 2³ = 26887759937 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1289019 + ... + 1309711.

It is an arithmetic number, because the mean of its divisors is an integer number (1063837152).

Almost surely, 2^26887759945 is an apocalyptic number.

It is an amenable number.

26887759945 is a deficient number, since it is larger than the sum of its proper divisors (7155028919).

26887759945 is a wasteful number, since it uses less digits than its factorization.

26887759945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20913.

The product of its digits is 304819200, while the sum is 70.

The spelling of 26887759945 in words is "twenty-six billion, eight hundred eighty-seven million, seven hundred fifty-nine thousand, nine hundred forty-five".