1340939013929 has 2 divisors, whose sum is σ = 1340939013930. Its totient is φ = 1340939013928.

The previous prime is 1340939013917. The next prime is 1340939013961. The reversal of 1340939013929 is 9293109390431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1267993106704 + 72945907225 = 1126052^2 + 270085^2 .

It is a cyclic number.

It is not a de Polignac number, because 1340939013929 - 2¹² = 1340939009833 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1340939013329) 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, 670469506964 + 670469506965.

It is an arithmetic number, because the mean of its divisors is an integer number (670469506965).

Almost surely, 2^{1340939013929} is an apocalyptic number.

It is an amenable number.

1340939013929 is a deficient number, since it is larger than the sum of its proper divisors (1).

1340939013929 is an equidigital number, since it uses as much as digits as its factorization.

1340939013929 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1417176, while the sum is 53.

The spelling of 1340939013929 in words is "one trillion, three hundred forty billion, nine hundred thirty-nine million, thirteen thousand, nine hundred twenty-nine".