26771155138140 has 240 divisors, whose sum is σ = 87486844962720. Its totient is φ = 6116349657600.

The previous prime is 26771155138139. The next prime is 26771155138151. The reversal of 26771155138140 is 4183155117762.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 326831190 + ... + 326913090.

It is an arithmetic number, because the mean of its divisors is an integer number (364528520678).

Almost surely, 2^{26771155138140} is an apocalyptic number.

26771155138140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26771155138140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43743422481360).

26771155138140 is an abundant number, since it is smaller than the sum of its proper divisors (60715689824580).

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

26771155138140 is a wasteful number, since it uses less digits than its factorization.

26771155138140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84210 (or 84187 counting only the distinct ones).

The product of its (nonzero) digits is 1411200, while the sum is 51.

The spelling of 26771155138140 in words is "twenty-six trillion, seven hundred seventy-one billion, one hundred fifty-five million, one hundred thirty-eight thousand, one hundred forty".