63151221351 has 16 divisors (see below), whose sum is σ = 84590509824. Its totient is φ = 41906453184.

The previous prime is 63151221347. The next prime is 63151221361. The reversal of 63151221351 is 15312215136.

It is not a de Polignac number, because 63151221351 - 2² = 63151221347 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63151221361) 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, 5317446 + ... + 5329308.

It is an arithmetic number, because the mean of its divisors is an integer number (5286906864).

Almost surely, 2^63151221351 is an apocalyptic number.

63151221351 is a deficient number, since it is larger than the sum of its proper divisors (21439288473).

63151221351 is a wasteful number, since it uses less digits than its factorization.

63151221351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19910.

The product of its digits is 5400, while the sum is 30.

Adding to 63151221351 its reverse (15312215136), we get a palindrome (78463436487).

The spelling of 63151221351 in words is "sixty-three billion, one hundred fifty-one million, two hundred twenty-one thousand, three hundred fifty-one".