81433259096 has 32 divisors (see below), whose sum is σ = 174849600000. Its totient is φ = 34830016416.

The previous prime is 81433259069. The next prime is 81433259099. The reversal of 81433259096 is 69095233418.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81433259099) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1429136 + ... + 1485023.

It is an arithmetic number, because the mean of its divisors is an integer number (5464050000).

Almost surely, 2^81433259096 is an apocalyptic number.

It is an amenable number.

81433259096 is an abundant number, since it is smaller than the sum of its proper divisors (93416340904).

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

81433259096 is a wasteful number, since it uses less digits than its factorization.

81433259096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2914671 (or 2914667 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 50.

The spelling of 81433259096 in words is "eighty-one billion, four hundred thirty-three million, two hundred fifty-nine thousand, ninety-six".