54178512324640 has 192 divisors, whose sum is σ = 140901598317312. Its totient is φ = 19522340454400.

The previous prime is 54178512324637. The next prime is 54178512324679. The reversal of 54178512324640 is 4642321587145.

It is a super-2 number, since 2×54178512324640² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 911437320 + ... + 911496760.

It is an arithmetic number, because the mean of its divisors is an integer number (733862491236).

Almost surely, 2^{54178512324640} 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 54178512324640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70450799158656).

54178512324640 is an abundant number, since it is smaller than the sum of its proper divisors (86723085992672).

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

54178512324640 is a wasteful number, since it uses less digits than its factorization.

54178512324640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64163 (or 64155 counting only the distinct ones).

The product of its (nonzero) digits is 6451200, while the sum is 52.

The spelling of 54178512324640 in words is "fifty-four trillion, one hundred seventy-eight billion, five hundred twelve million, three hundred twenty-four thousand, six hundred forty".