16431460009 has 2 divisors, whose sum is σ = 16431460010. Its totient is φ = 16431460008.

The previous prime is 16431459983. The next prime is 16431460027. The reversal of 16431460009 is 90006413461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15757278784 + 674181225 = 125528^2 + 25965^2 .

It is a cyclic number.

It is not a de Polignac number, because 16431460009 - 2⁷ = 16431459881 is a prime.

It is not a weakly prime, because it can be changed into another prime (16431460039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8215730004 + 8215730005.

It is an arithmetic number, because the mean of its divisors is an integer number (8215730005).

Almost surely, 2^16431460009 is an apocalyptic number.

It is an amenable number.

16431460009 is a deficient number, since it is larger than the sum of its proper divisors (1).

16431460009 is an equidigital number, since it uses as much as digits as its factorization.

16431460009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 34.

The spelling of 16431460009 in words is "sixteen billion, four hundred thirty-one million, four hundred sixty thousand, nine".