63856444141 has 4 divisors (see below), whose sum is σ = 72978793312. Its totient is φ = 54734094972.

The previous prime is 63856444103. The next prime is 63856444147. The reversal of 63856444141 is 14144465836.

It is a happy number.

63856444141 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 63856444141 - 2¹¹ = 63856442093 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 63856444091 and 63856444100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63856444147) 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, 4561174575 + ... + 4561174588.

It is an arithmetic number, because the mean of its divisors is an integer number (18244698328).

Almost surely, 2^63856444141 is an apocalyptic number.

It is an amenable number.

63856444141 is a deficient number, since it is larger than the sum of its proper divisors (9122349171).

63856444141 is an equidigital number, since it uses as much as digits as its factorization.

63856444141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9122349170.

The product of its digits is 1105920, while the sum is 46.

The spelling of 63856444141 in words is "sixty-three billion, eight hundred fifty-six million, four hundred forty-four thousand, one hundred forty-one".