80129594887 has 2 divisors, whose sum is σ = 80129594888. Its totient is φ = 80129594886.

The previous prime is 80129594869. The next prime is 80129594927. The reversal of 80129594887 is 78849592108.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80129594887 - 2¹¹ = 80129592839 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80129594837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40064797443 + 40064797444.

It is an arithmetic number, because the mean of its divisors is an integer number (40064797444).

Almost surely, 2^80129594887 is an apocalyptic number.

80129594887 is a deficient number, since it is larger than the sum of its proper divisors (1).

80129594887 is an equidigital number, since it uses as much as digits as its factorization.

80129594887 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11612160, while the sum is 61.

The spelling of 80129594887 in words is "eighty billion, one hundred twenty-nine million, five hundred ninety-four thousand, eight hundred eighty-seven".