26706390478 has 16 divisors (see below), whose sum is σ = 41064045120. Its totient is φ = 13020488416.

The previous prime is 26706390413. The next prime is 26706390511. The reversal of 26706390478 is 87409360762.

It is a congruent number.

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, 502801 + ... + 553372.

It is an arithmetic number, because the mean of its divisors is an integer number (2566502820).

Almost surely, 2^26706390478 is an apocalyptic number.

26706390478 is a deficient number, since it is larger than the sum of its proper divisors (14357654642).

26706390478 is a wasteful number, since it uses less digits than its factorization.

26706390478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1056491.

The product of its (nonzero) digits is 3048192, while the sum is 52.

The spelling of 26706390478 in words is "twenty-six billion, seven hundred six million, three hundred ninety thousand, four hundred seventy-eight".