5581277928 has 24 divisors (see below), whose sum is σ = 15115961250. Its totient is φ = 1860425952.

The previous prime is 5581277927. The next prime is 5581277941. The reversal of 5581277928 is 8297721855.

5581277928 is a `hidden beast` number, since 558 + 12 + 7 + 79 + 2 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 4850008164 + 731269764 = 69642^2 + 27042^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (5581277921) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 38758803 + ... + 38758946.

Almost surely, 2^5581277928 is an apocalyptic number.

It is an amenable number.

5581277928 is an abundant number, since it is smaller than the sum of its proper divisors (9534683322).

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

5581277928 is a wasteful number, since it uses less digits than its factorization.

5581277928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77517761 (or 77517754 counting only the distinct ones).

The product of its digits is 2822400, while the sum is 54.

The square root of 5581277928 is about 74707.9509021630. The cubic root of 5581277928 is about 1773.8268174846.

The spelling of 5581277928 in words is "five billion, five hundred eighty-one million, two hundred seventy-seven thousand, nine hundred twenty-eight".