80599421389 has 2 divisors, whose sum is σ = 80599421390. Its totient is φ = 80599421388.

The previous prime is 80599421317. The next prime is 80599421393. The reversal of 80599421389 is 98312499508.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51763985289 + 28835436100 = 227517^2 + 169810^2 .

It is a cyclic number.

It is not a de Polignac number, because 80599421389 - 2²⁵ = 80565866957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80599422389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40299710694 + 40299710695.

It is an arithmetic number, because the mean of its divisors is an integer number (40299710695).

Almost surely, 2^80599421389 is an apocalyptic number.

It is an amenable number.

80599421389 is a deficient number, since it is larger than the sum of its proper divisors (1).

80599421389 is an equidigital number, since it uses as much as digits as its factorization.

80599421389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5598720, while the sum is 58.

The spelling of 80599421389 in words is "eighty billion, five hundred ninety-nine million, four hundred twenty-one thousand, three hundred eighty-nine".