1315747421473 has 8 divisors (see below), whose sum is σ = 1318101945192. Its totient is φ = 1313393617536.

The previous prime is 1315747421419. The next prime is 1315747421537. The reversal of 1315747421473 is 3741247475131.

It can be written as a sum of positive squares in 4 ways, for example, as 45476415504 + 1270271005969 = 213252^2 + 1127063^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1315747421473 is a prime.

It is a super-3 number, since 3×1315747421473³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1315747821473) 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 7 ways as a sum of consecutive naturals, for example, 3548211 + ... + 3901447.

It is an arithmetic number, because the mean of its divisors is an integer number (164762743149).

Almost surely, 2^{1315747421473} is an apocalyptic number.

It is an amenable number.

1315747421473 is a deficient number, since it is larger than the sum of its proper divisors (2354523719).

1315747421473 is an equidigital number, since it uses as much as digits as its factorization.

1315747421473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359891.

The product of its digits is 1975680, while the sum is 49.

The spelling of 1315747421473 in words is "one trillion, three hundred fifteen billion, seven hundred forty-seven million, four hundred twenty-one thousand, four hundred seventy-three".