1353440432464 has 10 divisors (see below), whose sum is σ = 2622290837930. Its totient is φ = 676720216224.

The previous prime is 1353440432447. The next prime is 1353440432507. The reversal of 1353440432464 is 4642340443531.

It can be written as a sum of positive squares in only one way, i.e., 882284490000 + 471155942464 = 939300^2 + 686408^2 .

It is a super-2 number, since 2×1353440432464² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1353440432464.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42295013499 + ... + 42295013530.

It is an arithmetic number, because the mean of its divisors is an integer number (262229083793).

Almost surely, 2^{1353440432464} is an apocalyptic number.

It is an amenable number.

1353440432464 is a deficient number, since it is larger than the sum of its proper divisors (1268850405466).

1353440432464 is an equidigital number, since it uses as much as digits as its factorization.

1353440432464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84590027037 (or 84590027031 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 43.

Adding to 1353440432464 its reverse (4642340443531), we get a palindrome (5995780875995).

The spelling of 1353440432464 in words is "one trillion, three hundred fifty-three billion, four hundred forty million, four hundred thirty-two thousand, four hundred sixty-four".