81362200032 has 96 divisors (see below), whose sum is σ = 237362952960. Its totient is φ = 27114272640.

The previous prime is 81362200027. The next prime is 81362200061. The reversal of 81362200032 is 23000226318.

81362200032 is a `hidden beast` number, since 8 + 1 + 3 + 622 + 0 + 0 + 0 + 32 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 81362199969 and 81362200005.

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, 4822203 + ... + 4839045.

It is an arithmetic number, because the mean of its divisors is an integer number (2472530760).

Almost surely, 2^81362200032 is an apocalyptic number.

It is an amenable number.

81362200032 is an abundant number, since it is smaller than the sum of its proper divisors (156000752928).

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

81362200032 is a wasteful number, since it uses less digits than its factorization.

81362200032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22453 (or 22439 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The spelling of 81362200032 in words is "eighty-one billion, three hundred sixty-two million, two hundred thousand, thirty-two".