80534752681 has 8 divisors (see below), whose sum is σ = 85504446720. Its totient is φ = 75590875968.

The previous prime is 80534752663. The next prime is 80534752687. The reversal of 80534752681 is 18625743508.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 80534752681 - 2³³ = 71944818089 is a prime.

It is a super-2 number, since 2×80534752681² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80534752687) 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, 6447901 + ... + 6460378.

It is an arithmetic number, because the mean of its divisors is an integer number (10688055840).

Almost surely, 2^80534752681 is an apocalyptic number.

It is an amenable number.

80534752681 is a deficient number, since it is larger than the sum of its proper divisors (4969694039).

80534752681 is a wasteful number, since it uses less digits than its factorization.

80534752681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12908663.

The product of its (nonzero) digits is 1612800, while the sum is 49.

The spelling of 80534752681 in words is "eighty billion, five hundred thirty-four million, seven hundred fifty-two thousand, six hundred eighty-one".