432721409849 has 2 divisors, whose sum is σ = 432721409850. Its totient is φ = 432721409848.

The previous prime is 432721409833. The next prime is 432721409873. The reversal of 432721409849 is 948904127234.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 275160046249 + 157561363600 = 524557^2 + 396940^2 .

It is a cyclic number.

It is not a de Polignac number, because 432721409849 - 2⁴ = 432721409833 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 432721409849.

It is not a weakly prime, because it can be changed into another prime (432721409149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 216360704924 + 216360704925.

It is an arithmetic number, because the mean of its divisors is an integer number (216360704925).

Almost surely, 2^432721409849 is an apocalyptic number.

It is an amenable number.

432721409849 is a deficient number, since it is larger than the sum of its proper divisors (1).

432721409849 is an equidigital number, since it uses as much as digits as its factorization.

432721409849 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3483648, while the sum is 53.

The spelling of 432721409849 in words is "four hundred thirty-two billion, seven hundred twenty-one million, four hundred nine thousand, eight hundred forty-nine".