1310722657457 has 4 divisors (see below), whose sum is σ = 1353004033536. Its totient is φ = 1268441281380.

The previous prime is 1310722657427. The next prime is 1310722657471. The reversal of 1310722657457 is 7547562270131.

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 not a de Polignac number, because 1310722657457 - 2⁶ = 1310722657393 is a prime.

It is a super-2 number, since 2×1310722657457² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1310722657427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21140687993 + ... + 21140688054.

It is an arithmetic number, because the mean of its divisors is an integer number (338251008384).

Almost surely, 2^{1310722657457} is an apocalyptic number.

It is an amenable number.

1310722657457 is a deficient number, since it is larger than the sum of its proper divisors (42281376079).

1310722657457 is an equidigital number, since it uses as much as digits as its factorization.

1310722657457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42281376078.

The product of its (nonzero) digits is 2469600, while the sum is 50.

The spelling of 1310722657457 in words is "one trillion, three hundred ten billion, seven hundred twenty-two million, six hundred fifty-seven thousand, four hundred fifty-seven".