80125213009 has 2 divisors, whose sum is σ = 80125213010. Its totient is φ = 80125213008.

The previous prime is 80125212859. The next prime is 80125213019. The reversal of 80125213009 is 90031252108.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68128830225 + 11996382784 = 261015^2 + 109528^2 .

It is a cyclic number.

It is not a de Polignac number, because 80125213009 - 2¹⁷ = 80125081937 is a prime.

It is not a weakly prime, because it can be changed into another prime (80125213019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40062606504 + 40062606505.

It is an arithmetic number, because the mean of its divisors is an integer number (40062606505).

Almost surely, 2^80125213009 is an apocalyptic number.

It is an amenable number.

80125213009 is a deficient number, since it is larger than the sum of its proper divisors (1).

80125213009 is an equidigital number, since it uses as much as digits as its factorization.

80125213009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 31.

The spelling of 80125213009 in words is "eighty billion, one hundred twenty-five million, two hundred thirteen thousand, nine".