1361253667652 has 24 divisors (see below), whose sum is σ = 2523434903640. Its totient is φ = 640307566080.

The previous prime is 1361253667643. The next prime is 1361253667687. The reversal of 1361253667652 is 2567663521631.

It can be written as a sum of positive squares in 4 ways, for example, as 473407298116 + 887846369536 = 688046^2 + 942256^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1361253667594 and 1361253667603.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4256999 + ... + 4565582.

It is an arithmetic number, because the mean of its divisors is an integer number (105143120985).

Almost surely, 2^{1361253667652} is an apocalyptic number.

It is an amenable number.

1361253667652 is a deficient number, since it is larger than the sum of its proper divisors (1162181235988).

1361253667652 is a wasteful number, since it uses less digits than its factorization.

1361253667652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8824871 (or 8824869 counting only the distinct ones).

The product of its digits is 8164800, while the sum is 53.

The spelling of 1361253667652 in words is "one trillion, three hundred sixty-one billion, two hundred fifty-three million, six hundred sixty-seven thousand, six hundred fifty-two".