81734941732 has 12 divisors (see below), whose sum is σ = 143349140620. Its totient is φ = 40778044416.

The previous prime is 81734941681. The next prime is 81734941751. The reversal of 81734941732 is 23714943718.

It can be written as a sum of positive squares in 2 ways, for example, as 71575511296 + 10159430436 = 267536^2 + 100794^2 .

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, 22354557 + ... + 22358212.

Almost surely, 2^81734941732 is an apocalyptic number.

It is an amenable number.

81734941732 is a deficient number, since it is larger than the sum of its proper divisors (61614198888).

81734941732 is a wasteful number, since it uses less digits than its factorization.

81734941732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44713230 (or 44713228 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 49.

The spelling of 81734941732 in words is "eighty-one billion, seven hundred thirty-four million, nine hundred forty-one thousand, seven hundred thirty-two".