81353074010 has 128 divisors (see below), whose sum is σ = 168841580544. Its totient is φ = 28003553280.

The previous prime is 81353074007. The next prime is 81353074067. The reversal of 81353074010 is 1047035318.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 15355682 + ... + 15360978.

It is an arithmetic number, because the mean of its divisors is an integer number (1319074848).

Almost surely, 2^81353074010 is an apocalyptic number.

81353074010 is an abundant number, since it is smaller than the sum of its proper divisors (87488506534).

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

81353074010 is a wasteful number, since it uses less digits than its factorization.

81353074010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5488.

The product of its (nonzero) digits is 10080, while the sum is 32.

The spelling of 81353074010 in words is "eighty-one billion, three hundred fifty-three million, seventy-four thousand, ten".