26440958278 has 64 divisors (see below), whose sum is σ = 49712025600. Its totient is φ = 10301800320.

The previous prime is 26440958267. The next prime is 26440958287. The reversal of 26440958278 is 87285904462.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 437293 + ... + 494071.

It is an arithmetic number, because the mean of its divisors is an integer number (776750400).

Almost surely, 2^26440958278 is an apocalyptic number.

26440958278 is a deficient number, since it is larger than the sum of its proper divisors (23271067322).

26440958278 is a wasteful number, since it uses less digits than its factorization.

26440958278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56885.

The product of its (nonzero) digits is 7741440, while the sum is 55.

The spelling of 26440958278 in words is "twenty-six billion, four hundred forty million, nine hundred fifty-eight thousand, two hundred seventy-eight".