63774617121 has 6 divisors (see below), whose sum is σ = 92118891410. Its totient is φ = 42516411408.

The previous prime is 63774617111. The next prime is 63774617149. The reversal of 63774617121 is 12171647736.

63774617121 is a `hidden beast` number, since 6 + 3 + 7 + 7 + 4 + 617 + 1 + 21 = 666.

63774617121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 47747057121 + 16027560000 = 218511^2 + 126600^2 .

It is not a de Polignac number, because 63774617121 - 2⁵ = 63774617089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63774617111) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3543034276 + ... + 3543034293.

Almost surely, 2^63774617121 is an apocalyptic number.

It is an amenable number.

63774617121 is a deficient number, since it is larger than the sum of its proper divisors (28344274289).

63774617121 is a wasteful number, since it uses less digits than its factorization.

63774617121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7086068575 (or 7086068572 counting only the distinct ones).

The product of its digits is 296352, while the sum is 45.

The spelling of 63774617121 in words is "sixty-three billion, seven hundred seventy-four million, six hundred seventeen thousand, one hundred twenty-one".