63613352231 has 16 divisors (see below), whose sum is σ = 74811225888. Its totient is φ = 53327078400.

The previous prime is 63613352219. The next prime is 63613352233. The reversal of 63613352231 is 13225331636.

It is a cyclic number.

It is not a de Polignac number, because 63613352231 - 2⁶ = 63613352167 is a prime.

It is a super-2 number, since 2×63613352231² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 63613352191 and 63613352200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63613352233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87950 + ... + 367371.

It is an arithmetic number, because the mean of its divisors is an integer number (4675701618).

Almost surely, 2^63613352231 is an apocalyptic number.

63613352231 is a deficient number, since it is larger than the sum of its proper divisors (11197873657).

63613352231 is a wasteful number, since it uses less digits than its factorization.

63613352231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456322.

The product of its digits is 58320, while the sum is 35.

Adding to 63613352231 its reverse (13225331636), we get a palindrome (76838683867).

The spelling of 63613352231 in words is "sixty-three billion, six hundred thirteen million, three hundred fifty-two thousand, two hundred thirty-one".