2432659721 has 2 divisors, whose sum is σ = 2432659722. Its totient is φ = 2432659720.

The previous prime is 2432659657. The next prime is 2432659753. The reversal of 2432659721 is 1279562342.

2432659721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1683871225 + 748788496 = 41035^2 + 27364^2 .

It is a cyclic number.

It is not a de Polignac number, because 2432659721 - 2⁶ = 2432659657 is a prime.

It is not a weakly prime, because it can be changed into another prime (2432659771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1216329860 + 1216329861.

It is an arithmetic number, because the mean of its divisors is an integer number (1216329861).

Almost surely, 2^2432659721 is an apocalyptic number.

It is an amenable number.

2432659721 is a deficient number, since it is larger than the sum of its proper divisors (1).

2432659721 is an equidigital number, since it uses as much as digits as its factorization.

2432659721 is an evil number, because the sum of its binary digits is even.

The product of its digits is 181440, while the sum is 41.

The square root of 2432659721 is about 49322.0003750862. Note that the first 3 decimals coincide. The cubic root of 2432659721 is about 1344.9117507269.

The spelling of 2432659721 in words is "two billion, four hundred thirty-two million, six hundred fifty-nine thousand, seven hundred twenty-one".