27938143758029 has 16 divisors (see below), whose sum is σ = 29987758410624. Its totient is φ = 25968661540800.

The previous prime is 27938143757977. The next prime is 27938143758073. The reversal of 27938143758029 is 92085734183972.

It is a cyclic number.

It is not a de Polignac number, because 27938143758029 - 2⁸ = 27938143757773 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 27938143758029.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27938143758229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119842262 + ... + 120075159.

It is an arithmetic number, because the mean of its divisors is an integer number (1874234900664).

Almost surely, 2^{27938143758029} is an apocalyptic number.

It is an amenable number.

27938143758029 is a deficient number, since it is larger than the sum of its proper divisors (2049614652595).

27938143758029 is a wasteful number, since it uses less digits than its factorization.

27938143758029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239917588.

The product of its (nonzero) digits is 182891520, while the sum is 68.

The spelling of 27938143758029 in words is "twenty-seven trillion, nine hundred thirty-eight billion, one hundred forty-three million, seven hundred fifty-eight thousand, twenty-nine".