63526226421 has 16 divisors (see below), whose sum is σ = 96908156928. Its totient is φ = 36260842800.

The previous prime is 63526226417. The next prime is 63526226459. The reversal of 63526226421 is 12462262536.

It is not a de Polignac number, because 63526226421 - 2² = 63526226417 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 63526226421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63526226321) 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, 1641165 + ... + 1679426.

It is an arithmetic number, because the mean of its divisors is an integer number (6056759808).

Almost surely, 2^63526226421 is an apocalyptic number.

It is an amenable number.

63526226421 is a deficient number, since it is larger than the sum of its proper divisors (33381930507).

63526226421 is a wasteful number, since it uses less digits than its factorization.

63526226421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3321512.

The product of its digits is 207360, while the sum is 39.

Adding to 63526226421 its reverse (12462262536), we get a palindrome (75988488957).

The spelling of 63526226421 in words is "sixty-three billion, five hundred twenty-six million, two hundred twenty-six thousand, four hundred twenty-one".