81753601704 has 32 divisors (see below), whose sum is σ = 204396623520. Its totient is φ = 27249518016.

The previous prime is 81753601703. The next prime is 81753601723. The reversal of 81753601704 is 40710635718.

It is not an unprimeable number, because it can be changed into a prime (81753601703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 328074 + ... + 520710.

It is an arithmetic number, because the mean of its divisors is an integer number (6387394485).

Almost surely, 2^81753601704 is an apocalyptic number.

It is an amenable number.

81753601704 is an abundant number, since it is smaller than the sum of its proper divisors (122643021816).

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

81753601704 is a wasteful number, since it uses less digits than its factorization.

81753601704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210329 (or 210325 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 42.

The spelling of 81753601704 in words is "eighty-one billion, seven hundred fifty-three million, six hundred one thousand, seven hundred four".