1375744520401 has 2 divisors, whose sum is σ = 1375744520402. Its totient is φ = 1375744520400.

The previous prime is 1375744520389. The next prime is 1375744520429. The reversal of 1375744520401 is 1040254475731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 926167565376 + 449576955025 = 962376^2 + 670505^2 .

It is a cyclic number.

It is not a de Polignac number, because 1375744520401 - 2⁹ = 1375744519889 is a prime.

It is not a weakly prime, because it can be changed into another prime (1375744520461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 687872260200 + 687872260201.

It is an arithmetic number, because the mean of its divisors is an integer number (687872260201).

Almost surely, 2^{1375744520401} is an apocalyptic number.

It is an amenable number.

1375744520401 is a deficient number, since it is larger than the sum of its proper divisors (1).

1375744520401 is an equidigital number, since it uses as much as digits as its factorization.

1375744520401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 470400, while the sum is 43.

The spelling of 1375744520401 in words is "one trillion, three hundred seventy-five billion, seven hundred forty-four million, five hundred twenty thousand, four hundred one".