32400344549 has 2 divisors, whose sum is σ = 32400344550. Its totient is φ = 32400344548.

The previous prime is 32400344527. The next prime is 32400344579. The reversal of 32400344549 is 94544300423.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30549796225 + 1850548324 = 174785^2 + 43018^2 .

It is a cyclic number.

It is not a de Polignac number, because 32400344549 - 2⁸ = 32400344293 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32400344579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16200172274 + 16200172275.

It is an arithmetic number, because the mean of its divisors is an integer number (16200172275).

Almost surely, 2^32400344549 is an apocalyptic number.

It is an amenable number.

32400344549 is a deficient number, since it is larger than the sum of its proper divisors (1).

32400344549 is an equidigital number, since it uses as much as digits as its factorization.

32400344549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 207360, while the sum is 38.

The spelling of 32400344549 in words is "thirty-two billion, four hundred million, three hundred forty-four thousand, five hundred forty-nine".