1353644421460 has 12 divisors (see below), whose sum is σ = 2842653285108. Its totient is φ = 541457768576.

The previous prime is 1353644421457. The next prime is 1353644421517. The reversal of 1353644421460 is 641244463531.

It can be written as a sum of positive squares in 2 ways, for example, as 188380304784 + 1165264116676 = 434028^2 + 1079474^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33841110517 + ... + 33841110556.

It is an arithmetic number, because the mean of its divisors is an integer number (236887773759).

Almost surely, 2^{1353644421460} is an apocalyptic number.

1353644421460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1353644421460 is an abundant number, since it is smaller than the sum of its proper divisors (1489008863648).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1353644421460 is a wasteful number, since it uses less digits than its factorization.

1353644421460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67682221082 (or 67682221080 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 43.

Adding to 1353644421460 its reverse (641244463531), we get a palindrome (1994888884991).

The spelling of 1353644421460 in words is "one trillion, three hundred fifty-three billion, six hundred forty-four million, four hundred twenty-one thousand, four hundred sixty".