881309232261 has 24 divisors (see below), whose sum is σ = 1329038657856. Its totient is φ = 561703000320.

The previous prime is 881309232161. The next prime is 881309232277. The reversal of 881309232261 is 162232903188.

881309232261 is a `hidden beast` number, since 8 + 81 + 309 + 2 + 3 + 2 + 261 = 666.

881309232261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 881309232261 - 2¹⁰ = 881309231237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (881309232161) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 702700 + ... + 1502133.

It is an arithmetic number, because the mean of its divisors is an integer number (55376610744).

Almost surely, 2^881309232261 is an apocalyptic number.

It is an amenable number.

881309232261 is a deficient number, since it is larger than the sum of its proper divisors (447729425595).

881309232261 is a wasteful number, since it uses less digits than its factorization.

881309232261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2206793 (or 2206790 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The spelling of 881309232261 in words is "eight hundred eighty-one billion, three hundred nine million, two hundred thirty-two thousand, two hundred sixty-one".