54289428857 has 24 divisors (see below), whose sum is σ = 57907487880. Its totient is φ = 50846088960.

The previous prime is 54289428839. The next prime is 54289428877. The reversal of 54289428857 is 75882498245.

It can be written as a sum of positive squares in 4 ways, for example, as 10214416 + 54279214441 = 3196^2 + 232979^2 .

It is a de Polignac number, because none of the positive numbers 2^k-54289428857 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 54289428857.

It is not an unprimeable number, because it can be changed into a prime (54289428877) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4980269 + ... + 4991157.

It is an arithmetic number, because the mean of its divisors is an integer number (2412811995).

Almost surely, 2^54289428857 is an apocalyptic number.

It is an amenable number.

54289428857 is a deficient number, since it is larger than the sum of its proper divisors (3618059023).

54289428857 is a wasteful number, since it uses less digits than its factorization.

54289428857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11081 (or 11034 counting only the distinct ones).

The product of its digits is 51609600, while the sum is 62.

The spelling of 54289428857 in words is "fifty-four billion, two hundred eighty-nine million, four hundred twenty-eight thousand, eight hundred fifty-seven".