26938763471 has 4 divisors (see below), whose sum is σ = 27185908200. Its totient is φ = 26691618744.

The previous prime is 26938763459. The next prime is 26938763513. The reversal of 26938763471 is 17436783962.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26938763471 is a prime.

It is a super-3 number, since 3×26938763471³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26938763671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123572201 + ... + 123572418.

It is an arithmetic number, because the mean of its divisors is an integer number (6796477050).

Almost surely, 2^26938763471 is an apocalyptic number.

26938763471 is a deficient number, since it is larger than the sum of its proper divisors (247144729).

26938763471 is a wasteful number, since it uses less digits than its factorization.

26938763471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247144728.

The product of its digits is 9144576, while the sum is 56.

The spelling of 26938763471 in words is "twenty-six billion, nine hundred thirty-eight million, seven hundred sixty-three thousand, four hundred seventy-one".