36512421563 has 4 divisors (see below), whose sum is σ = 36514085040. Its totient is φ = 36510758088.

The previous prime is 36512421557. The next prime is 36512421613.

36512421563 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 36512421563 - 2⁶ = 36512421499 is a prime.

It is a super-3 number, since 3×36512421563³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36512421523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 798368 + ... + 842861.

It is an arithmetic number, because the mean of its divisors is an integer number (9128521260).

Almost surely, 2^36512421563 is an apocalyptic number.

36512421563 is a deficient number, since it is larger than the sum of its proper divisors (1663477).

36512421563 is a wasteful number, since it uses less digits than its factorization.

36512421563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1663476.

The product of its digits is 129600, while the sum is 38.

The spelling of 36512421563 in words is "thirty-six billion, five hundred twelve million, four hundred twenty-one thousand, five hundred sixty-three".