54128415447 has 12 divisors (see below), whose sum is σ = 78188951880. Its totient is φ = 36084012048.

The previous prime is 54128415431. The next prime is 54128415457. The reversal of 54128415447 is 74451482145.

54128415447 is a `hidden beast` number, since 5 + 41 + 28 + 41 + 544 + 7 = 666.

54128415447 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 54128415447 - 2⁴ = 54128415431 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54128415457) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 103429 + ... + 344897.

It is an arithmetic number, because the mean of its divisors is an integer number (6515745990).

Almost surely, 2^54128415447 is an apocalyptic number.

54128415447 is a deficient number, since it is larger than the sum of its proper divisors (24060536433).

54128415447 is a wasteful number, since it uses less digits than its factorization.

54128415447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266382 (or 266379 counting only the distinct ones).

The product of its digits is 716800, while the sum is 45.

The spelling of 54128415447 in words is "fifty-four billion, one hundred twenty-eight million, four hundred fifteen thousand, four hundred forty-seven".