5478799011840 has 832 divisors, whose sum is σ = 24284194513920. Its totient is φ = 1138442895360.

The previous prime is 5478799011811. The next prime is 5478799011841. The reversal of 5478799011840 is 481109978745.

5478799011840 is a `hidden beast` number, since 5 + 478 + 7 + 9 + 9 + 0 + 118 + 40 = 666.

It is a super-2 number, since 2×5478799011840² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5478799011841) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 42513582 + ... + 42642258.

Almost surely, 2^{5478799011840} 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 5478799011840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12142097256960).

5478799011840 is an abundant number, since it is smaller than the sum of its proper divisors (18805395502080).

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

5478799011840 is a wasteful number, since it uses less digits than its factorization.

5478799011840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128733 (or 128705 counting only the distinct ones).

The product of its (nonzero) digits is 20321280, while the sum is 63.

The spelling of 5478799011840 in words is "five trillion, four hundred seventy-eight billion, seven hundred ninety-nine million, eleven thousand, eight hundred forty".