80712851 has 2 divisors, whose sum is σ = 80712852. Its totient is φ = 80712850.

The previous prime is 80712811. The next prime is 80712869. The reversal of 80712851 is 15821708.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80712851 - 2¹⁸ = 80450707 is a prime.

It is not a weakly prime, because it can be changed into another prime (80712811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40356425 + 40356426.

It is an arithmetic number, because the mean of its divisors is an integer number (40356426).

Almost surely, 2^80712851 is an apocalyptic number.

80712851 is a deficient number, since it is larger than the sum of its proper divisors (1).

80712851 is an equidigital number, since it uses as much as digits as its factorization.

80712851 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4480, while the sum is 32.

The square root of 80712851 is about 8984.0331143646. The cubic root of 80712851 is about 432.1629811282.

The spelling of 80712851 in words is "eighty million, seven hundred twelve thousand, eight hundred fifty-one".