54428732899 has 4 divisors (see below), whose sum is σ = 54430103536. Its totient is φ = 54427362264.

The previous prime is 54428732867. The next prime is 54428732903. The reversal of 54428732899 is 99823782445.

54428732899 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.

It is a cyclic number.

It is not a de Polignac number, because 54428732899 - 2⁵ = 54428732867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54428732999) 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, 623919 + ... + 705784.

It is an arithmetic number, because the mean of its divisors is an integer number (13607525884).

Almost surely, 2^54428732899 is an apocalyptic number.

54428732899 is a deficient number, since it is larger than the sum of its proper divisors (1370637).

54428732899 is a wasteful number, since it uses less digits than its factorization.

54428732899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1370636.

The product of its digits is 34836480, while the sum is 61.

The spelling of 54428732899 in words is "fifty-four billion, four hundred twenty-eight million, seven hundred thirty-two thousand, eight hundred ninety-nine".