26978138014 has 16 divisors (see below), whose sum is σ = 40779859536. Its totient is φ = 13385232000.

The previous prime is 26978138003. The next prime is 26978138041. The reversal of 26978138014 is 41083187962.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47364 + ... + 237064.

It is an arithmetic number, because the mean of its divisors is an integer number (2548741221).

Almost surely, 2^26978138014 is an apocalyptic number.

26978138014 is a deficient number, since it is larger than the sum of its proper divisors (13801721522).

26978138014 is a wasteful number, since it uses less digits than its factorization.

26978138014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190251.

The product of its (nonzero) digits is 580608, while the sum is 49.

The spelling of 26978138014 in words is "twenty-six billion, nine hundred seventy-eight million, one hundred thirty-eight thousand, fourteen".