63310261421 has 12 divisors (see below), whose sum is σ = 69808530876. Its totient is φ = 57373187520.

The previous prime is 63310261411. The next prime is 63310261451. The reversal of 63310261421 is 12416201336.

It can be written as a sum of positive squares in 2 ways, for example, as 8387995396 + 54922266025 = 91586^2 + 234355^2 .

It is not a de Polignac number, because 63310261421 - 2³⁴ = 46130392237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63310261411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 786920 + ... + 863633.

It is an arithmetic number, because the mean of its divisors is an integer number (5817377573).

Almost surely, 2^63310261421 is an apocalyptic number.

It is an amenable number.

63310261421 is a deficient number, since it is larger than the sum of its proper divisors (6498269455).

63310261421 is a wasteful number, since it uses less digits than its factorization.

63310261421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1650892 (or 1650881 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

Adding to 63310261421 its reverse (12416201336), we get a palindrome (75726462757).

The spelling of 63310261421 in words is "sixty-three billion, three hundred ten million, two hundred sixty-one thousand, four hundred twenty-one".