81936226096 has 20 divisors (see below), whose sum is σ = 158789737600. Its totient is φ = 40958229312.

The previous prime is 81936226079. The next prime is 81936226111. The reversal of 81936226096 is 69062263918.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 549111 + ... + 682198.

It is an arithmetic number, because the mean of its divisors is an integer number (7939486880).

Almost surely, 2^81936226096 is an apocalyptic number.

It is an amenable number.

81936226096 is a deficient number, since it is larger than the sum of its proper divisors (76853511504).

81936226096 is a wasteful number, since it uses less digits than its factorization.

81936226096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1235476 (or 1235470 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 52.

The spelling of 81936226096 in words is "eighty-one billion, nine hundred thirty-six million, two hundred twenty-six thousand, ninety-six".