39958437041 has 2 divisors, whose sum is σ = 39958437042. Its totient is φ = 39958437040.

The previous prime is 39958437023. The next prime is 39958437131. The reversal of 39958437041 is 14073485993.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32087198641 + 7871238400 = 179129^2 + 88720^2 .

It is a cyclic number.

It is not a de Polignac number, because 39958437041 - 2²⁶ = 39891328177 is a prime.

It is not a weakly prime, because it can be changed into another prime (39958437241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19979218520 + 19979218521.

It is an arithmetic number, because the mean of its divisors is an integer number (19979218521).

Almost surely, 2^39958437041 is an apocalyptic number.

It is an amenable number.

39958437041 is a deficient number, since it is larger than the sum of its proper divisors (1).

39958437041 is an equidigital number, since it uses as much as digits as its factorization.

39958437041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3265920, while the sum is 53.

The spelling of 39958437041 in words is "thirty-nine billion, nine hundred fifty-eight million, four hundred thirty-seven thousand, forty-one".