881999999999999 has 8 divisors (see below), whose sum is σ = 888148590716928. Its totient is φ = 875855455745400.

The previous prime is 881999999999977. The next prime is 882000000000019. The reversal of 881999999999999 is 999999999999188.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 881999999999999 - 2⁴⁸ = 600525023289343 is a prime.

It is a super-9 number, since 9×881999999999999⁹ (a number of 136 digits) contains 999999999 as substring.

It is a Duffinian number.

881999999999999 is a modest number, since divided by 99999999 gives 8819999 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (881999999995999) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1011178127 + ... + 1012050000.

It is an arithmetic number, because the mean of its divisors is an integer number (111018573839616).

Almost surely, 2^{881999999999999} is an apocalyptic number.

881999999999999 is a deficient number, since it is larger than the sum of its proper divisors (6148590716929).

881999999999999 is a wasteful number, since it uses less digits than its factorization.

881999999999999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2023231165.

The product of its digits is 18075490334784, while the sum is 125.

The spelling of 881999999999999 in words is "eight hundred eighty-one trillion, nine hundred ninety-nine billion, nine hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred ninety-nine".