63106273421 has 4 divisors (see below), whose sum is σ = 63566903292. Its totient is φ = 62645643552.

The previous prime is 63106273411. The next prime is 63106273481. The reversal of 63106273421 is 12437260136.

63106273421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 53112272521 + 9994000900 = 230461^2 + 99970^2 .

It is a cyclic number.

It is not a de Polignac number, because 63106273421 - 2²⁶ = 63039164557 is a prime.

It is a super-2 number, since 2×63106273421² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63106273411) 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, 230314730 + ... + 230315003.

It is an arithmetic number, because the mean of its divisors is an integer number (15891725823).

Almost surely, 2^63106273421 is an apocalyptic number.

It is an amenable number.

63106273421 is a deficient number, since it is larger than the sum of its proper divisors (460629871).

63106273421 is a wasteful number, since it uses less digits than its factorization.

63106273421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460629870.

The product of its (nonzero) digits is 36288, while the sum is 35.

The spelling of 63106273421 in words is "sixty-three billion, one hundred six million, two hundred seventy-three thousand, four hundred twenty-one".