1381375068757 has 4 divisors (see below), whose sum is σ = 1413500070400. Its totient is φ = 1349250067116.

The previous prime is 1381375068737. The next prime is 1381375068859. The reversal of 1381375068757 is 7578605731831.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1381375068757 is a prime.

It is a super-3 number, since 3×1381375068757³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1381375068695 and 1381375068704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1381375068707) 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, 16062500757 + ... + 16062500842.

It is an arithmetic number, because the mean of its divisors is an integer number (353375017600).

Almost surely, 2^{1381375068757} is an apocalyptic number.

It is an amenable number.

1381375068757 is a deficient number, since it is larger than the sum of its proper divisors (32125001643).

1381375068757 is an equidigital number, since it uses as much as digits as its factorization.

1381375068757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32125001642.

The product of its (nonzero) digits is 29635200, while the sum is 61.

The spelling of 1381375068757 in words is "one trillion, three hundred eighty-one billion, three hundred seventy-five million, sixty-eight thousand, seven hundred fifty-seven".