1371346645525 has 12 divisors (see below), whose sum is σ = 1701757140964. Its totient is φ = 1096246800000.

The previous prime is 1371346645523. The next prime is 1371346645547. The reversal of 1371346645525 is 5255466431731.

It can be written as a sum of positive squares in 6 ways, for example, as 4035044484 + 1367311601041 = 63522^2 + 1169321^2 .

It is not a de Polignac number, because 1371346645525 - 2¹ = 1371346645523 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1371346645523) 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 in 11 ways as a sum of consecutive naturals, for example, 20729226 + ... + 20795275.

Almost surely, 2^{1371346645525} is an apocalyptic number.

It is an amenable number.

1371346645525 is a deficient number, since it is larger than the sum of its proper divisors (330410495439).

1371346645525 is a wasteful number, since it uses less digits than its factorization.

1371346645525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41525832 (or 41525827 counting only the distinct ones).

The product of its digits is 9072000, while the sum is 52.

The spelling of 1371346645525 in words is "one trillion, three hundred seventy-one billion, three hundred forty-six million, six hundred forty-five thousand, five hundred twenty-five".