81733633030 has 32 divisors (see below), whose sum is σ = 170505907200. Its totient is φ = 27628268640.

The previous prime is 81733633027. The next prime is 81733633067. The reversal of 81733633030 is 3033633718.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8217730 + ... + 8227669.

It is an arithmetic number, because the mean of its divisors is an integer number (5328309600).

Almost surely, 2^81733633030 is an apocalyptic number.

81733633030 is an abundant number, since it is smaller than the sum of its proper divisors (88772274170).

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

81733633030 is a wasteful number, since it uses less digits than its factorization.

81733633030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16445484.

The product of its (nonzero) digits is 81648, while the sum is 37.

The spelling of 81733633030 in words is "eighty-one billion, seven hundred thirty-three million, six hundred thirty-three thousand, thirty".