1377520126297 has 4 divisors (see below), whose sum is σ = 1574308715776. Its totient is φ = 1180731536820.

The previous prime is 1377520126291. The next prime is 1377520126349. The reversal of 1377520126297 is 7926210257731.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1377520126297 - 2³⁵ = 1343160387929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1377520126291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98394294729 + ... + 98394294742.

It is an arithmetic number, because the mean of its divisors is an integer number (393577178944).

Almost surely, 2^{1377520126297} is an apocalyptic number.

It is an amenable number.

1377520126297 is a deficient number, since it is larger than the sum of its proper divisors (196788589479).

1377520126297 is an equidigital number, since it uses as much as digits as its factorization.

1377520126297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196788589478.

The product of its (nonzero) digits is 2222640, while the sum is 52.

The spelling of 1377520126297 in words is "one trillion, three hundred seventy-seven billion, five hundred twenty million, one hundred twenty-six thousand, two hundred ninety-seven".