81067246874 has 16 divisors (see below), whose sum is σ = 125869615200. Its totient is φ = 39112388784.

The previous prime is 81067246867. The next prime is 81067246891. The reversal of 81067246874 is 47864276018.

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, 322544 + ... + 515915.

It is an arithmetic number, because the mean of its divisors is an integer number (7866850950).

Almost surely, 2^81067246874 is an apocalyptic number.

81067246874 is a deficient number, since it is larger than the sum of its proper divisors (44802368326).

81067246874 is a wasteful number, since it uses less digits than its factorization.

81067246874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 840157.

The product of its (nonzero) digits is 3612672, while the sum is 53.

The spelling of 81067246874 in words is "eighty-one billion, sixty-seven million, two hundred forty-six thousand, eight hundred seventy-four".