1375732256771 has 4 divisors (see below), whose sum is σ = 1376833725000. Its totient is φ = 1374630788544.

The previous prime is 1375732256749. The next prime is 1375732256783. The reversal of 1375732256771 is 1776522375731.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1375732256771 - 2⁶ = 1375732256707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1375732256741) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 550732241 + ... + 550734738.

It is an arithmetic number, because the mean of its divisors is an integer number (344208431250).

Almost surely, 2^{1375732256771} is an apocalyptic number.

1375732256771 is a deficient number, since it is larger than the sum of its proper divisors (1101468229).

1375732256771 is a wasteful number, since it uses less digits than its factorization.

1375732256771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1101468228.

The product of its digits is 12965400, while the sum is 56.

The spelling of 1375732256771 in words is "one trillion, three hundred seventy-five billion, seven hundred thirty-two million, two hundred fifty-six thousand, seven hundred seventy-one".