363603638881 has 16 divisors (see below), whose sum is σ = 416137079808. Its totient is φ = 311217984000.

The previous prime is 363603638857. The next prime is 363603638903. The reversal of 363603638881 is 188836306363.

It is not a de Polignac number, because 363603638881 - 2²¹ = 363601541729 is a prime.

It is a super-2 number, since 2×363603638881² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (363603636881) 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 15 ways as a sum of consecutive naturals, for example, 19421181 + ... + 19439893.

It is an arithmetic number, because the mean of its divisors is an integer number (26008567488).

Almost surely, 2^363603638881 is an apocalyptic number.

It is an amenable number.

363603638881 is a deficient number, since it is larger than the sum of its proper divisors (52533440927).

363603638881 is a wasteful number, since it uses less digits than its factorization.

363603638881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22512.

The product of its (nonzero) digits is 8957952, while the sum is 55.

The spelling of 363603638881 in words is "three hundred sixty-three billion, six hundred three million, six hundred thirty-eight thousand, eight hundred eighty-one".