5538451329 has 16 divisors (see below), whose sum is σ = 8207064000. Its totient is φ = 3691423008.

The previous prime is 5538451231. The next prime is 5538451337. The reversal of 5538451329 is 9231548355.

5538451329 is a `hidden beast` number, since 5 + 53 + 84 + 513 + 2 + 9 = 666.

It is not a de Polignac number, because 5538451329 - 2⁸ = 5538451073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5538451229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103462 + ... + 147584.

It is an arithmetic number, because the mean of its divisors is an integer number (512941500).

Almost surely, 2^5538451329 is an apocalyptic number.

It is an amenable number.

5538451329 is a deficient number, since it is larger than the sum of its proper divisors (2668612671).

5538451329 is a wasteful number, since it uses less digits than its factorization.

5538451329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48781 (or 48775 counting only the distinct ones).

The product of its digits is 648000, while the sum is 45.

The square root of 5538451329 is about 74420.7721607348. The cubic root of 5538451329 is about 1769.2781515018.

The spelling of 5538451329 in words is "five billion, five hundred thirty-eight million, four hundred fifty-one thousand, three hundred twenty-nine".