127374839729 has 2 divisors, whose sum is σ = 127374839730. Its totient is φ = 127374839728.

The previous prime is 127374839701. The next prime is 127374839783. The reversal of 127374839729 is 927938473721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 118514947600 + 8859892129 = 344260^2 + 94127^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-127374839729 is a prime.

It is not a weakly prime, because it can be changed into another prime (127374832729) 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, 63687419864 + 63687419865.

It is an arithmetic number, because the mean of its divisors is an integer number (63687419865).

Almost surely, 2^127374839729 is an apocalyptic number.

It is an amenable number.

127374839729 is a deficient number, since it is larger than the sum of its proper divisors (1).

127374839729 is an equidigital number, since it uses as much as digits as its factorization.

127374839729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32006016, while the sum is 62.

The spelling of 127374839729 in words is "one hundred twenty-seven billion, three hundred seventy-four million, eight hundred thirty-nine thousand, seven hundred twenty-nine".