5498138391 has 8 divisors (see below), whose sum is σ = 7583639280. Its totient is φ = 3539031552.

The previous prime is 5498138381. The next prime is 5498138411. The reversal of 5498138391 is 1938318945.

5498138391 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5498138391 - 2⁷ = 5498138263 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5498138381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31598410 + ... + 31598583.

It is an arithmetic number, because the mean of its divisors is an integer number (947954910).

Almost surely, 2^5498138391 is an apocalyptic number.

5498138391 is a deficient number, since it is larger than the sum of its proper divisors (2085500889).

5498138391 is a wasteful number, since it uses less digits than its factorization.

5498138391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63197025.

The product of its digits is 933120, while the sum is 51.

The square root of 5498138391 is about 74149.4328434143. The cubic root of 5498138391 is about 1764.9749897881.

The spelling of 5498138391 in words is "five billion, four hundred ninety-eight million, one hundred thirty-eight thousand, three hundred ninety-one".