80654494727 has 2 divisors, whose sum is σ = 80654494728. Its totient is φ = 80654494726.

The previous prime is 80654494721. The next prime is 80654494751. The reversal of 80654494727 is 72749445608.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80654494727 - 2²⁶ = 80587385863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80654494721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40327247363 + 40327247364.

It is an arithmetic number, because the mean of its divisors is an integer number (40327247364).

Almost surely, 2^80654494727 is an apocalyptic number.

80654494727 is a deficient number, since it is larger than the sum of its proper divisors (1).

80654494727 is an equidigital number, since it uses as much as digits as its factorization.

80654494727 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13547520, while the sum is 56.

The spelling of 80654494727 in words is "eighty billion, six hundred fifty-four million, four hundred ninety-four thousand, seven hundred twenty-seven".