881273813 has 16 divisors (see below), whose sum is σ = 1017772800. Its totient is φ = 747467136.

The previous prime is 881273741. The next prime is 881273821. The reversal of 881273813 is 318372188.

It is a cyclic number.

It is not a de Polignac number, because 881273813 - 2²⁰ = 880225237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (881273873) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 287513 + ... + 290561.

It is an arithmetic number, because the mean of its divisors is an integer number (63610800).

Almost surely, 2^881273813 is an apocalyptic number.

It is an amenable number.

881273813 is a deficient number, since it is larger than the sum of its proper divisors (136498987).

881273813 is a wasteful number, since it uses less digits than its factorization.

881273813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3476.

The product of its digits is 64512, while the sum is 41.

The square root of 881273813 is about 29686.2562981593. The cubic root of 881273813 is about 958.7461252278.

The spelling of 881273813 in words is "eight hundred eighty-one million, two hundred seventy-three thousand, eight hundred thirteen".