54388880640 has 432 divisors, whose sum is σ = 200562905088. Its totient is φ = 13560643584.

The previous prime is 54388880591. The next prime is 54388880653. The reversal of 54388880640 is 4608888345.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 32704449 + ... + 32706111.

It is an arithmetic number, because the mean of its divisors is an integer number (464265984).

Almost surely, 2^54388880640 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54388880640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100281452544).

54388880640 is an abundant number, since it is smaller than the sum of its proper divisors (146174024448).

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

54388880640 is a wasteful number, since it uses less digits than its factorization.

54388880640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1874 (or 1857 counting only the distinct ones).

The product of its (nonzero) digits is 5898240, while the sum is 54.

It can be divided in two parts, 54388 and 880640, that added together give a triangular number (935028 = T₁₃₆₇).

The spelling of 54388880640 in words is "fifty-four billion, three hundred eighty-eight million, eight hundred eighty thousand, six hundred forty".