1377965422997 has 2 divisors, whose sum is σ = 1377965422998. Its totient is φ = 1377965422996.

The previous prime is 1377965422807. The next prime is 1377965423041. The reversal of 1377965422997 is 7992245697731.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1231409676721 + 146555746276 = 1109689^2 + 382826^2 .

It is a cyclic number.

It is not a de Polignac number, because 1377965422997 - 2¹² = 1377965418901 is a prime.

It is a super-2 number, since 2×1377965422997² (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 1377965422997.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1377965422597) 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, 688982711498 + 688982711499.

It is an arithmetic number, because the mean of its divisors is an integer number (688982711499).

Almost surely, 2^{1377965422997} is an apocalyptic number.

It is an amenable number.

1377965422997 is a deficient number, since it is larger than the sum of its proper divisors (1).

1377965422997 is an equidigital number, since it uses as much as digits as its factorization.

1377965422997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 360067680, while the sum is 71.

The spelling of 1377965422997 in words is "one trillion, three hundred seventy-seven billion, nine hundred sixty-five million, four hundred twenty-two thousand, nine hundred ninety-seven".