881138605272 has 16 divisors (see below), whose sum is σ = 2202846513240. Its totient is φ = 293712868416.

The previous prime is 881138605267. The next prime is 881138605279. The reversal of 881138605272 is 272506831188.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (881138605279) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18357054253 + ... + 18357054300.

Almost surely, 2^881138605272 is an apocalyptic number.

It is an amenable number.

881138605272 is an abundant number, since it is smaller than the sum of its proper divisors (1321707907968).

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

881138605272 is a wasteful number, since it uses less digits than its factorization.

881138605272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36714108562 (or 36714108558 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 51.

The spelling of 881138605272 in words is "eight hundred eighty-one billion, one hundred thirty-eight million, six hundred five thousand, two hundred seventy-two".