63364139185 has 16 divisors (see below), whose sum is σ = 80800408656. Its totient is φ = 47537215488.

The previous prime is 63364139143. The next prime is 63364139197. The reversal of 63364139185 is 58193146336.

It can be written as a sum of positive squares in 8 ways, for example, as 421357729 + 62942781456 = 20527^2 + 250884^2 .

It is a cyclic number.

It is not a de Polignac number, because 63364139185 - 2⁷ = 63364139057 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1322052 + ... + 1369141.

It is an arithmetic number, because the mean of its divisors is an integer number (5050025541).

Almost surely, 2^63364139185 is an apocalyptic number.

It is an amenable number.

63364139185 is a deficient number, since it is larger than the sum of its proper divisors (17436269471).

63364139185 is a wasteful number, since it uses less digits than its factorization.

63364139185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2691492.

The product of its digits is 1399680, while the sum is 49.

The spelling of 63364139185 in words is "sixty-three billion, three hundred sixty-four million, one hundred thirty-nine thousand, one hundred eighty-five".