81833369084 has 6 divisors (see below), whose sum is σ = 143208395904. Its totient is φ = 40916684540.

The previous prime is 81833368879. The next prime is 81833369119. The reversal of 81833369084 is 48096333818.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10229171132 + ... + 10229171139.

It is an arithmetic number, because the mean of its divisors is an integer number (23868065984).

Almost surely, 2^81833369084 is an apocalyptic number.

It is an amenable number.

81833369084 is a deficient number, since it is larger than the sum of its proper divisors (61375026820).

81833369084 is a wasteful number, since it uses less digits than its factorization.

81833369084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20458342275 (or 20458342273 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 53.

The spelling of 81833369084 in words is "eighty-one billion, eight hundred thirty-three million, three hundred sixty-nine thousand, eighty-four".