5428118691 has 40 divisors (see below), whose sum is σ = 8186887104. Its totient is φ = 3598839720.

The previous prime is 5428118687. The next prime is 5428118701. The reversal of 5428118691 is 1968118245.

It is a happy number.

5428118691 is a `hidden beast` number, since 542 + 8 + 1 + 18 + 6 + 91 = 666.

It is not a de Polignac number, because 5428118691 - 2² = 5428118687 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5428118621) by changing a digit.

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 39 ways as a sum of consecutive naturals, for example, 4152460 + ... + 4153766.

Almost surely, 2^5428118691 is an apocalyptic number.

5428118691 is a deficient number, since it is larger than the sum of its proper divisors (2758768413).

5428118691 is an frugal number, since it uses more digits than its factorization.

5428118691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1545 (or 1521 counting only the distinct ones).

The product of its digits is 138240, while the sum is 45.

The square root of 5428118691 is about 73675.7673254918. The cubic root of 5428118691 is about 1757.4505411654.

The spelling of 5428118691 in words is "five billion, four hundred twenty-eight million, one hundred eighteen thousand, six hundred ninety-one".