26939254128 has 40 divisors (see below), whose sum is σ = 69606402048. Its totient is φ = 8978031552.

The previous prime is 26939254081. The next prime is 26939254129. The reversal of 26939254128 is 82145293962.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26939254129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 213151 + ... + 315137.

Almost surely, 2^26939254128 is an apocalyptic number.

It is an amenable number.

26939254128 is an abundant number, since it is smaller than the sum of its proper divisors (42667147920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26939254128 is a wasteful number, since it uses less digits than its factorization.

26939254128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107501 (or 107495 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 51.

The spelling of 26939254128 in words is "twenty-six billion, nine hundred thirty-nine million, two hundred fifty-four thousand, one hundred twenty-eight".