881186121942 has 16 divisors (see below), whose sum is σ = 2014139707392. Its totient is φ = 251767463400.

The previous prime is 881186121913. The next prime is 881186121961. The reversal of 881186121942 is 249121681188.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10490310934 + ... + 10490311017.

It is an arithmetic number, because the mean of its divisors is an integer number (125883731712).

Almost surely, 2^881186121942 is an apocalyptic number.

881186121942 is an abundant number, since it is smaller than the sum of its proper divisors (1132953585450).

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

881186121942 is a wasteful number, since it uses less digits than its factorization.

881186121942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20980621963.

The product of its digits is 442368, while the sum is 51.

The spelling of 881186121942 in words is "eight hundred eighty-one billion, one hundred eighty-six million, one hundred twenty-one thousand, nine hundred forty-two".