81112338458676 has 144 divisors (see below), whose sum is σ = 240663594976896. Its totient is φ = 22548044742912.

The previous prime is 81112338458563. The next prime is 81112338458717. The reversal of 81112338458676 is 67685483321118.

It is a happy number.

81112338458676 is a `hidden beast` number, since 8 + 1 + 1 + 12 + 3 + 38 + 4 + 586 + 7 + 6 = 666.

It is a super-2 number, since 2×81112338458676² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

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, 500776335 + ... + 500938281.

Almost surely, 2^{81112338458676} is an apocalyptic number.

It is an amenable number.

81112338458676 is an abundant number, since it is smaller than the sum of its proper divisors (159551256518220).

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

81112338458676 is a wasteful number, since it uses less digits than its factorization.

81112338458676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215718 (or 215713 counting only the distinct ones).

The product of its digits is 46448640, while the sum is 63.

The spelling of 81112338458676 in words is "eighty-one trillion, one hundred twelve billion, three hundred thirty-eight million, four hundred fifty-eight thousand, six hundred seventy-six".