81436083014 has 32 divisors (see below), whose sum is σ = 143549794080. Its totient is φ = 34159449600.

The previous prime is 81436082977. The next prime is 81436083019. The reversal of 81436083014 is 41038063418.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81436083019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1037792 + ... + 1113500.

It is an arithmetic number, because the mean of its divisors is an integer number (4485931065).

Almost surely, 2^81436083014 is an apocalyptic number.

81436083014 is a deficient number, since it is larger than the sum of its proper divisors (62113711066).

81436083014 is a wasteful number, since it uses less digits than its factorization.

81436083014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79496.

The product of its (nonzero) digits is 55296, while the sum is 38.

The spelling of 81436083014 in words is "eighty-one billion, four hundred thirty-six million, eighty-three thousand, fourteen".