39427959349 has 2 divisors, whose sum is σ = 39427959350. Its totient is φ = 39427959348.

The previous prime is 39427959289. The next prime is 39427959353. The reversal of 39427959349 is 94395972493.

39427959349 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., 32103680625 + 7324278724 = 179175^2 + 85582^2 .

It is a cyclic number.

It is not a de Polignac number, because 39427959349 - 2¹¹ = 39427957301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39427959049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19713979674 + 19713979675.

It is an arithmetic number, because the mean of its divisors is an integer number (19713979675).

Almost surely, 2^39427959349 is an apocalyptic number.

It is an amenable number.

39427959349 is a deficient number, since it is larger than the sum of its proper divisors (1).

39427959349 is an equidigital number, since it uses as much as digits as its factorization.

39427959349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 66134880, while the sum is 64.

It can be divided in two parts, 3942795 and 9349, that added together give a square (3952144 = 1988²).

The spelling of 39427959349 in words is "thirty-nine billion, four hundred twenty-seven million, nine hundred fifty-nine thousand, three hundred forty-nine".