32644749349 has 2 divisors, whose sum is σ = 32644749350. Its totient is φ = 32644749348.

The previous prime is 32644749289. The next prime is 32644749461. The reversal of 32644749349 is 94394744623.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18766260100 + 13878489249 = 136990^2 + 117807^2 .

It is an emirp because it is prime and its reverse (94394744623) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 32644749349 - 2²⁹ = 32107878437 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 32644749349.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32644749649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16322374674 + 16322374675.

It is an arithmetic number, because the mean of its divisors is an integer number (16322374675).

Almost surely, 2^32644749349 is an apocalyptic number.

It is an amenable number.

32644749349 is a deficient number, since it is larger than the sum of its proper divisors (1).

32644749349 is an equidigital number, since it uses as much as digits as its factorization.

32644749349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15676416, while the sum is 55.

The spelling of 32644749349 in words is "thirty-two billion, six hundred forty-four million, seven hundred forty-nine thousand, three hundred forty-nine".