1331327013757 has 16 divisors (see below), whose sum is σ = 1447279772400. Its totient is φ = 1217321828352.

The previous prime is 1331327013743. The next prime is 1331327013763. The reversal of 1331327013757 is 7573107231331.

It can be written as a sum of positive squares in 8 ways, for example, as 106345123236 + 1224981890521 = 326106^2 + 1106789^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1331327013757 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 (1331327013707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2225869 + ... + 2759917.

It is an arithmetic number, because the mean of its divisors is an integer number (90454985775).

Almost surely, 2^{1331327013757} is an apocalyptic number.

It is an amenable number.

1331327013757 is a deficient number, since it is larger than the sum of its proper divisors (115952758643).

1331327013757 is a wasteful number, since it uses less digits than its factorization.

1331327013757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535872.

The product of its (nonzero) digits is 277830, while the sum is 43.

The spelling of 1331327013757 in words is "one trillion, three hundred thirty-one billion, three hundred twenty-seven million, thirteen thousand, seven hundred fifty-seven".