881136452812 has 144 divisors (see below), whose sum is σ = 1992297716640. Its totient is φ = 337130035200.

The previous prime is 881136452789. The next prime is 881136452821. The reversal of 881136452812 is 218254631188.

881136452812 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×881136452812² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 26538862 + ... + 26572042.

It is an arithmetic number, because the mean of its divisors is an integer number (13835400810).

Almost surely, 2^881136452812 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 881136452812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (996148858320).

881136452812 is an abundant number, since it is smaller than the sum of its proper divisors (1111161263828).

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

881136452812 is a wasteful number, since it uses less digits than its factorization.

881136452812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33432 (or 33423 counting only the distinct ones).

The product of its digits is 737280, while the sum is 49.

The spelling of 881136452812 in words is "eight hundred eighty-one billion, one hundred thirty-six million, four hundred fifty-two thousand, eight hundred twelve".