1375812644375 has 20 divisors (see below), whose sum is σ = 1851462835992. Its totient is φ = 1015984716000.

The previous prime is 1375812644359. The next prime is 1375812644383. The reversal of 1375812644375 is 5734462185731.

It is not a de Polignac number, because 1375812644375 - 2⁴ = 1375812644359 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1375812644375.

It is a congruent number.

It is an unprimeable number.

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 19 ways as a sum of consecutive naturals, for example, 84657269 + ... + 84673518.

Almost surely, 2^{1375812644375} is an apocalyptic number.

1375812644375 is a deficient number, since it is larger than the sum of its proper divisors (475650191617).

1375812644375 is an equidigital number, since it uses as much as digits as its factorization.

1375812644375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169330820 (or 169330805 counting only the distinct ones).

The product of its digits is 16934400, while the sum is 56.

The spelling of 1375812644375 in words is "one trillion, three hundred seventy-five billion, eight hundred twelve million, six hundred forty-four thousand, three hundred seventy-five".