54178719840 has 1296 divisors, whose sum is σ = 240310639296. Its totient is φ = 11039293440.

The previous prime is 54178719797. The next prime is 54178719853. The reversal of 54178719840 is 4891787145.

54178719840 is a `hidden beast` number, since 541 + 7 + 8 + 7 + 1 + 98 + 4 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 215 ways as a sum of consecutive naturals, for example, 1152738697 + ... + 1152738743.

It is an arithmetic number, because the mean of its divisors is an integer number (185424876).

Almost surely, 2^54178719840 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 54178719840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120155319648).

54178719840 is an abundant number, since it is smaller than the sum of its proper divisors (186131919456).

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

54178719840 is a wasteful number, since it uses less digits than its factorization.

54178719840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161 (or 112 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 54.

The spelling of 54178719840 in words is "fifty-four billion, one hundred seventy-eight million, seven hundred nineteen thousand, eight hundred forty".