1375138884569 has 2 divisors, whose sum is σ = 1375138884570. Its totient is φ = 1375138884568.

The previous prime is 1375138884491. The next prime is 1375138884577. The reversal of 1375138884569 is 9654888315731.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 797368632025 + 577770252544 = 892955^2 + 760112^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1375138884569 is a prime.

It is a super-2 number, since 2×1375138884569² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1375138884499 and 1375138884508.

It is not a weakly prime, because it can be changed into another prime (1375138884599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 687569442284 + 687569442285.

It is an arithmetic number, because the mean of its divisors is an integer number (687569442285).

Almost surely, 2^{1375138884569} is an apocalyptic number.

It is an amenable number.

1375138884569 is a deficient number, since it is larger than the sum of its proper divisors (1).

1375138884569 is an equidigital number, since it uses as much as digits as its factorization.

1375138884569 is an evil number, because the sum of its binary digits is even.

The product of its digits is 174182400, while the sum is 68.

The spelling of 1375138884569 in words is "one trillion, three hundred seventy-five billion, one hundred thirty-eight million, eight hundred eighty-four thousand, five hundred sixty-nine".