5481773864 has 32 divisors (see below), whose sum is σ = 11986392000. Its totient is φ = 2349330480.

The previous prime is 5481773863. The next prime is 5481773867. The reversal of 5481773864 is 4683771845.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (5481773861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 996122 + ... + 1001609.

It is an arithmetic number, because the mean of its divisors is an integer number (374574750).

Almost surely, 2^5481773864 is an apocalyptic number.

It is an amenable number.

5481773864 is an abundant number, since it is smaller than the sum of its proper divisors (6504618136).

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

5481773864 is a wasteful number, since it uses less digits than its factorization.

5481773864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1997758 (or 1997740 counting only the distinct ones).

The product of its digits is 4515840, while the sum is 53.

The square root of 5481773864 is about 74039.0023163468. The cubic root of 5481773864 is about 1763.2221732386. Note that the first 3 decimals are identical.

The spelling of 5481773864 in words is "five billion, four hundred eighty-one million, seven hundred seventy-three thousand, eight hundred sixty-four".