1361253667648 has 56 divisors (see below), whose sum is σ = 3087346014272. Its totient is φ = 583353391104.

The previous prime is 1361253667643. The next prime is 1361253667687. The reversal of 1361253667648 is 8467663521631.

It is a tau number, because it is divible by the number of its divisors (56).

It is a junction number, because it is equal to n+sod(n) for n = 1361253667592 and 1361253667601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1361253667643) 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, 6761011 + ... + 6959437.

Almost surely, 2^{1361253667648} is an apocalyptic number.

It is an amenable number.

1361253667648 is an abundant number, since it is smaller than the sum of its proper divisors (1726092346624).

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

1361253667648 is a wasteful number, since it uses less digits than its factorization.

1361253667648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213759 (or 213749 counting only the distinct ones).

The product of its digits is 26127360, while the sum is 58.

The spelling of 1361253667648 in words is "one trillion, three hundred sixty-one billion, two hundred fifty-three million, six hundred sixty-seven thousand, six hundred forty-eight".