81106803714 has 16 divisors (see below), whose sum is σ = 162886695840. Its totient is φ = 26923419840.

The previous prime is 81106803707. The next prime is 81106803719. The reversal of 81106803714 is 41730860118.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (81106803719) 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, 28043784 + ... + 28046675.

It is an arithmetic number, because the mean of its divisors is an integer number (10180418490).

Almost surely, 2^81106803714 is an apocalyptic number.

81106803714 is an abundant number, since it is smaller than the sum of its proper divisors (81779892126).

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

81106803714 is a wasteful number, since it uses less digits than its factorization.

81106803714 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56090705.

The product of its (nonzero) digits is 32256, while the sum is 39.

The spelling of 81106803714 in words is "eighty-one billion, one hundred six million, eight hundred three thousand, seven hundred fourteen".