63811041323 has 18 divisors (see below), whose sum is σ = 66995124924. Its totient is φ = 60773267632.

The previous prime is 63811041311. The next prime is 63811041337. The reversal of 63811041323 is 32314011836.

It is a de Polignac number, because none of the positive numbers 2^k-63811041323 is a prime.

It is a super-2 number, since 2×63811041323² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 63811041323.

It is not an unprimeable number, because it can be changed into a prime (63811041023) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 38278136 + ... + 38279802.

Almost surely, 2^63811041323 is an apocalyptic number.

63811041323 is a deficient number, since it is larger than the sum of its proper divisors (3184083601).

63811041323 is an equidigital number, since it uses as much as digits as its factorization.

63811041323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2251 (or 1959 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The spelling of 63811041323 in words is "sixty-three billion, eight hundred eleven million, forty-one thousand, three hundred twenty-three".