1373368563 has 12 divisors (see below), whose sum is σ = 2267148208. Its totient is φ = 784782000.

The previous prime is 1373368561. The next prime is 1373368639. The reversal of 1373368563 is 3658633731.

1373368563 is a `hidden beast` number, since 13 + 73 + 3 + 6 + 8 + 563 = 666.

It is not a de Polignac number, because 1373368563 - 2¹ = 1373368561 is a prime.

It is a super-2 number, since 2×1373368563² = 3772282419673369938, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1373368561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10899688 + ... + 10899813.

Almost surely, 2^1373368563 is an apocalyptic number.

1373368563 is a deficient number, since it is larger than the sum of its proper divisors (893779645).

1373368563 is a wasteful number, since it uses less digits than its factorization.

1373368563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21799514 (or 21799511 counting only the distinct ones).

The product of its digits is 816480, while the sum is 45.

The square root of 1373368563 is about 37058.9876143426. The cubic root of 1373368563 is about 1111.5500793041.

The spelling of 1373368563 in words is "one billion, three hundred seventy-three million, three hundred sixty-eight thousand, five hundred sixty-three".