80043653507693 has 2 divisors, whose sum is σ = 80043653507694. Its totient is φ = 80043653507692.

The previous prime is 80043653507687. The next prime is 80043653507723. The reversal of 80043653507693 is 39670535634008.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70997526556009 + 9046126951684 = 8426003^2 + 3007678^2 .

It is a cyclic number.

It is not a de Polignac number, because 80043653507693 - 2²⁶ = 80043586398829 is a prime.

It is a super-2 number, since 2×80043653507693² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80043653507093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40021826753846 + 40021826753847.

It is an arithmetic number, because the mean of its divisors is an integer number (40021826753847).

Almost surely, 2^{80043653507693} is an apocalyptic number.

It is an amenable number.

80043653507693 is a deficient number, since it is larger than the sum of its proper divisors (1).

80043653507693 is an equidigital number, since it uses as much as digits as its factorization.

80043653507693 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48988800, while the sum is 59.

The spelling of 80043653507693 in words is "eighty trillion, forty-three billion, six hundred fifty-three million, five hundred seven thousand, six hundred ninety-three".