81110474002 has 16 divisors (see below), whose sum is σ = 124361350272. Its totient is φ = 39658176880.

The previous prime is 81110473957. The next prime is 81110474017. The reversal of 81110474002 is 20047401118.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 261649 + ... + 480292.

It is an arithmetic number, because the mean of its divisors is an integer number (7772584392).

Almost surely, 2^81110474002 is an apocalyptic number.

81110474002 is a deficient number, since it is larger than the sum of its proper divisors (43250876270).

81110474002 is a wasteful number, since it uses less digits than its factorization.

81110474002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 743153.

The product of its (nonzero) digits is 1792, while the sum is 28.

The spelling of 81110474002 in words is "eighty-one billion, one hundred ten million, four hundred seventy-four thousand, two".