39141779029 has 2 divisors, whose sum is σ = 39141779030. Its totient is φ = 39141779028.

The previous prime is 39141779009. The next prime is 39141779057. The reversal of 39141779029 is 92097714193.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31198156900 + 7943622129 = 176630^2 + 89127^2 .

It is a cyclic number.

It is not a de Polignac number, because 39141779029 - 2¹¹ = 39141776981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39141779009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19570889514 + 19570889515.

It is an arithmetic number, because the mean of its divisors is an integer number (19570889515).

Almost surely, 2^39141779029 is an apocalyptic number.

It is an amenable number.

39141779029 is a deficient number, since it is larger than the sum of its proper divisors (1).

39141779029 is an equidigital number, since it uses as much as digits as its factorization.

39141779029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 857304, while the sum is 52.

The spelling of 39141779029 in words is "thirty-nine billion, one hundred forty-one million, seven hundred seventy-nine thousand, twenty-nine".