1270929238399 has 2 divisors, whose sum is σ = 1270929238400. Its totient is φ = 1270929238398.

The previous prime is 1270929238273. The next prime is 1270929238409. The reversal of 1270929238399 is 9938329290721.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1270929238399 - 2¹¹ = 1270929236351 is a prime.

It is a super-2 number, since 2×1270929238399² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1270929238399.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1270929238699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 635464619199 + 635464619200.

It is an arithmetic number, because the mean of its divisors is an integer number (635464619200).

Almost surely, 2^{1270929238399} is an apocalyptic number.

1270929238399 is a deficient number, since it is larger than the sum of its proper divisors (1).

1270929238399 is an equidigital number, since it uses as much as digits as its factorization.

1270929238399 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26453952, while the sum is 64.

The spelling of 1270929238399 in words is "one trillion, two hundred seventy billion, nine hundred twenty-nine million, two hundred thirty-eight thousand, three hundred ninety-nine".