5428547181 has 20 divisors (see below), whose sum is σ = 8223535584. Its totient is φ = 3568055400.

The previous prime is 5428547153. The next prime is 5428547191. The reversal of 5428547181 is 1817458245.

5428547181 is a `hidden beast` number, since 5 + 4 + 28 + 547 + 1 + 81 = 666.

It is not a de Polignac number, because 5428547181 - 2¹³ = 5428538989 is a prime.

It is a super-2 number, since 2×5428547181² = 58938248992686093522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5428547191) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 466215 + ... + 477716.

Almost surely, 2^5428547181 is an apocalyptic number.

It is an amenable number.

5428547181 is a deficient number, since it is larger than the sum of its proper divisors (2794988403).

5428547181 is an equidigital number, since it uses as much as digits as its factorization.

5428547181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 944014 (or 944005 counting only the distinct ones).

The product of its digits is 358400, while the sum is 45.

The square root of 5428547181 is about 73678.6752120313. The cubic root of 5428547181 is about 1757.4967837165.

The spelling of 5428547181 in words is "five billion, four hundred twenty-eight million, five hundred forty-seven thousand, one hundred eighty-one".