13357732221457 has 8 divisors (see below), whose sum is σ = 14399450740584. Its totient is φ = 12318042367488.

The previous prime is 13357732221433. The next prime is 13357732221497. The reversal of 13357732221457 is 75412223775331.

It can be written as a sum of positive squares in 4 ways, for example, as 1007455845841 + 12350276375616 = 1003721^2 + 3514296^2 .

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

It is not a de Polignac number, because 13357732221457 - 2³⁵ = 13323372483089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13357732221497) 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, 507152608 + ... + 507178945.

It is an arithmetic number, because the mean of its divisors is an integer number (1799931342573).

Almost surely, 2^{13357732221457} is an apocalyptic number.

It is an amenable number.

13357732221457 is a deficient number, since it is larger than the sum of its proper divisors (1041718519127).

13357732221457 is a wasteful number, since it uses less digits than its factorization.

13357732221457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1014332579.

The product of its digits is 7408800, while the sum is 52.

Adding to 13357732221457 its reverse (75412223775331), we get a palindrome (88769955996788).

The spelling of 13357732221457 in words is "thirteen trillion, three hundred fifty-seven billion, seven hundred thirty-two million, two hundred twenty-one thousand, four hundred fifty-seven".