5534997891 has 8 divisors (see below), whose sum is σ = 7390264320. Its totient is φ = 3684865032.

The previous prime is 5534997877. The next prime is 5534997917. The reversal of 5534997891 is 1987994355.

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

It is not a de Polignac number, because 5534997891 - 2¹³ = 5534989699 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5534995891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1280875 + ... + 1285188.

It is an arithmetic number, because the mean of its divisors is an integer number (923783040).

Almost surely, 2^5534997891 is an apocalyptic number.

5534997891 is a deficient number, since it is larger than the sum of its proper divisors (1855266429).

5534997891 is a wasteful number, since it uses less digits than its factorization.

5534997891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2566785.

The product of its digits is 12247200, while the sum is 60.

The square root of 5534997891 is about 74397.5664319741. The cubic root of 5534997891 is about 1768.9103373219.

The spelling of 5534997891 in words is "five billion, five hundred thirty-four million, nine hundred ninety-seven thousand, eight hundred ninety-one".