40549932413 has 2 divisors, whose sum is σ = 40549932414. Its totient is φ = 40549932412.

The previous prime is 40549932389. The next prime is 40549932427. The reversal of 40549932413 is 31423994504.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32189024569 + 8360907844 = 179413^2 + 91438^2 .

It is a cyclic number.

It is not a de Polignac number, because 40549932413 - 2²² = 40545738109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40549932473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20274966206 + 20274966207.

It is an arithmetic number, because the mean of its divisors is an integer number (20274966207).

Almost surely, 2^40549932413 is an apocalyptic number.

It is an amenable number.

40549932413 is a deficient number, since it is larger than the sum of its proper divisors (1).

40549932413 is an equidigital number, since it uses as much as digits as its factorization.

40549932413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 466560, while the sum is 44.

The spelling of 40549932413 in words is "forty billion, five hundred forty-nine million, nine hundred thirty-two thousand, four hundred thirteen".