1377400626313 has 2 divisors, whose sum is σ = 1377400626314. Its totient is φ = 1377400626312.

The previous prime is 1377400626299. The next prime is 1377400626331. The reversal of 1377400626313 is 3136260047731.

It is a happy number.

Together with next prime (1377400626331) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1360705919049 + 16694707264 = 1166493^2 + 129208^2 .

It is a cyclic number.

It is not a de Polignac number, because 1377400626313 - 2²⁹ = 1376863755401 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1377400626313.

It is not a weakly prime, because it can be changed into another prime (1377400626353) 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, 688700313156 + 688700313157.

It is an arithmetic number, because the mean of its divisors is an integer number (688700313157).

Almost surely, 2^{1377400626313} is an apocalyptic number.

It is an amenable number.

1377400626313 is a deficient number, since it is larger than the sum of its proper divisors (1).

1377400626313 is an equidigital number, since it uses as much as digits as its factorization.

1377400626313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 381024, while the sum is 43.

The spelling of 1377400626313 in words is "one trillion, three hundred seventy-seven billion, four hundred million, six hundred twenty-six thousand, three hundred thirteen".