54394646121 has 20 divisors (see below), whose sum is σ = 81270277264. Its totient is φ = 36256815000.

The previous prime is 54394646107. The next prime is 54394646123. The reversal of 54394646121 is 12164649345.

54394646121 is a `hidden beast` number, since 543 + 9 + 46 + 4 + 61 + 2 + 1 = 666.

54394646121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 54394646121 - 2⁶ = 54394646057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54394646123) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 438246 + ... + 548496.

Almost surely, 2^54394646121 is an apocalyptic number.

It is an amenable number.

54394646121 is a deficient number, since it is larger than the sum of its proper divisors (26875631143).

54394646121 is a wasteful number, since it uses less digits than its factorization.

54394646121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116354 (or 116345 counting only the distinct ones).

The product of its digits is 622080, while the sum is 45.

The spelling of 54394646121 in words is "fifty-four billion, three hundred ninety-four million, six hundred forty-six thousand, one hundred twenty-one".