5478881940 has 144 divisors (see below), whose sum is σ = 19011912192. Its totient is φ = 1251099648.

The previous prime is 5478881917. The next prime is 5478881951. The reversal of 5478881940 is 491888745.

5478881940 is a `hidden beast` number, since 5 + 478 + 8 + 81 + 94 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2237797 + ... + 2240243.

It is an arithmetic number, because the mean of its divisors is an integer number (132027168).

Almost surely, 2^5478881940 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 5478881940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9505956096).

5478881940 is an abundant number, since it is smaller than the sum of its proper divisors (13533030252).

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

5478881940 is a wasteful number, since it uses less digits than its factorization.

5478881940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4246 (or 4241 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 54.

The square root of 5478881940 is about 74019.4700062085. The cubic root of 5478881940 is about 1762.9120545562.

The spelling of 5478881940 in words is "five billion, four hundred seventy-eight million, eight hundred eighty-one thousand, nine hundred forty".