1399405365563 has 8 divisors (see below), whose sum is σ = 1473081162000. Its totient is φ = 1325731857408.

The previous prime is 1399405365559. The next prime is 1399405365593. The reversal of 1399405365563 is 3655635049931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1399405365563 - 2² = 1399405365559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1399405365593) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 763163 + ... + 1838811.

It is an arithmetic number, because the mean of its divisors is an integer number (184135145250).

Almost surely, 2^{1399405365563} is an apocalyptic number.

1399405365563 is a deficient number, since it is larger than the sum of its proper divisors (73675796437).

1399405365563 is a wasteful number, since it uses less digits than its factorization.

1399405365563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1144141.

The product of its (nonzero) digits is 39366000, while the sum is 59.

The spelling of 1399405365563 in words is "one trillion, three hundred ninety-nine billion, four hundred five million, three hundred sixty-five thousand, five hundred sixty-three".