1013004621563 has 32 divisors (see below), whose sum is σ = 1163363040000. Its totient is φ = 873497761920.

The previous prime is 1013004621481. The next prime is 1013004621581. The reversal of 1013004621563 is 3651264003101.

It is a de Polignac number, because none of the positive numbers 2^k-1013004621563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1013004629563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29136356 + ... + 29171102.

It is an arithmetic number, because the mean of its divisors is an integer number (36355095000).

Almost surely, 2^{1013004621563} is an apocalyptic number.

1013004621563 is a deficient number, since it is larger than the sum of its proper divisors (150358418437).

1013004621563 is a wasteful number, since it uses less digits than its factorization.

1013004621563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36395.

The product of its (nonzero) digits is 12960, while the sum is 32.

Adding to 1013004621563 its reverse (3651264003101), we get a palindrome (4664268624664).

The spelling of 1013004621563 in words is "one trillion, thirteen billion, four million, six hundred twenty-one thousand, five hundred sixty-three".