1353621464545 has 8 divisors (see below), whose sum is σ = 1856395151424. Its totient is φ = 928197575664.

The previous prime is 1353621464543. The next prime is 1353621464609. The reversal of 1353621464545 is 5454641263531.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1353621464545 - 2¹ = 1353621464543 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1353621464543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19337449459 + ... + 19337449528.

It is an arithmetic number, because the mean of its divisors is an integer number (232049393928).

Almost surely, 2^{1353621464545} is an apocalyptic number.

It is an amenable number.

1353621464545 is a deficient number, since it is larger than the sum of its proper divisors (502773686879).

1353621464545 is an equidigital number, since it uses as much as digits as its factorization.

1353621464545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38674898999.

The product of its digits is 5184000, while the sum is 49.

The spelling of 1353621464545 in words is "one trillion, three hundred fifty-three billion, six hundred twenty-one million, four hundred sixty-four thousand, five hundred forty-five".