1361201713540 has 12 divisors (see below), whose sum is σ = 2858523598476. Its totient is φ = 544480685408.

The previous prime is 1361201713507. The next prime is 1361201713549. The reversal of 1361201713540 is 453171021631.

It can be written as a sum of positive squares in 2 ways, for example, as 493233717636 + 867967995904 = 702306^2 + 931648^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1361201713496 and 1361201713505.

It is not an unprimeable number, because it can be changed into a prime (1361201713549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34030042819 + ... + 34030042858.

It is an arithmetic number, because the mean of its divisors is an integer number (238210299873).

Almost surely, 2^{1361201713540} is an apocalyptic number.

1361201713540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1361201713540 is an abundant number, since it is smaller than the sum of its proper divisors (1497321884936).

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

1361201713540 is a wasteful number, since it uses less digits than its factorization.

1361201713540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68060085686 (or 68060085684 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 34.

The spelling of 1361201713540 in words is "one trillion, three hundred sixty-one billion, two hundred one million, seven hundred thirteen thousand, five hundred forty".