54388634790 has 128 divisors (see below), whose sum is σ = 154177044480. Its totient is φ = 12016252800.

The previous prime is 54388634777. The next prime is 54388634801. The reversal of 54388634790 is 9743688345.

It is a self number, because there is not a number n which added to its sum of digits gives 54388634790.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5978145 + ... + 5987235.

It is an arithmetic number, because the mean of its divisors is an integer number (1204508160).

Almost surely, 2^54388634790 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54388634790, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77088522240).

54388634790 is an abundant number, since it is smaller than the sum of its proper divisors (99788409690).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

54388634790 is a wasteful number, since it uses less digits than its factorization.

54388634790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10058.

The product of its (nonzero) digits is 17418240, while the sum is 57.

The spelling of 54388634790 in words is "fifty-four billion, three hundred eighty-eight million, six hundred thirty-four thousand, seven hundred ninety".