1361746852391 has 16 divisors (see below), whose sum is σ = 1460221084800. Its totient is φ = 1265316569088.

The previous prime is 1361746852387. The next prime is 1361746852409. The reversal of 1361746852391 is 1932586471631.

It is a cyclic number.

It is not a de Polignac number, because 1361746852391 - 2² = 1361746852387 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1361746852331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19778915 + ... + 19847643.

It is an arithmetic number, because the mean of its divisors is an integer number (91263817800).

Almost surely, 2^{1361746852391} is an apocalyptic number.

1361746852391 is a deficient number, since it is larger than the sum of its proper divisors (98474232409).

1361746852391 is a wasteful number, since it uses less digits than its factorization.

1361746852391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83578.

The product of its digits is 6531840, while the sum is 56.

The spelling of 1361746852391 in words is "one trillion, three hundred sixty-one billion, seven hundred forty-six million, eight hundred fifty-two thousand, three hundred ninety-one".