881162631 has 40 divisors (see below), whose sum is σ = 1372360704. Its totient is φ = 562807440.

The previous prime is 881162599. The next prime is 881162669. The reversal of 881162631 is 136261188.

881162631 is a `hidden beast` number, since 8 + 8 + 1 + 16 + 2 + 631 = 666.

881162631 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 881162631 - 2⁵ = 881162599 is a prime.

It is a super-2 number, since 2×881162631² = 1552895164541684322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (881162671) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 256930 + ... + 260336.

Almost surely, 2^881162631 is an apocalyptic number.

881162631 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

881162631 is a deficient number, since it is larger than the sum of its proper divisors (491198073).

881162631 is a wasteful number, since it uses less digits than its factorization.

881162631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3553 (or 3544 counting only the distinct ones).

The product of its digits is 13824, while the sum is 36.

The square root of 881162631 is about 29684.3836216958. The cubic root of 881162631 is about 958.7058048819.

The spelling of 881162631 in words is "eight hundred eighty-one million, one hundred sixty-two thousand, six hundred thirty-one".