63450211272011 has 4 divisors (see below), whose sum is σ = 63475103472000. Its totient is φ = 63425319072024.

The previous prime is 63450211271987. The next prime is 63450211272013. The reversal of 63450211272011 is 11027211205436.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63450211272011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63450211272013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12446096171 + ... + 12446101268.

It is an arithmetic number, because the mean of its divisors is an integer number (15868775868000).

Almost surely, 2^{63450211272011} is an apocalyptic number.

63450211272011 is a deficient number, since it is larger than the sum of its proper divisors (24892199989).

63450211272011 is a wasteful number, since it uses less digits than its factorization.

63450211272011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24892199988.

The product of its (nonzero) digits is 20160, while the sum is 35.

Adding to 63450211272011 its reverse (11027211205436), we get a palindrome (74477422477447).

The spelling of 63450211272011 in words is "sixty-three trillion, four hundred fifty billion, two hundred eleven million, two hundred seventy-two thousand, eleven".