5078148891 has 8 divisors (see below), whose sum is σ = 6773190144. Its totient is φ = 3384270120.

The previous prime is 5078148871. The next prime is 5078148949. The reversal of 5078148891 is 1988418705.

It is a happy number.

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

It is not a de Polignac number, because 5078148891 - 2¹⁵ = 5078116123 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5078148841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 280375 + ... + 297936.

It is an arithmetic number, because the mean of its divisors is an integer number (846648768).

Almost surely, 2^5078148891 is an apocalyptic number.

5078148891 is a deficient number, since it is larger than the sum of its proper divisors (1695041253).

5078148891 is a wasteful number, since it uses less digits than its factorization.

5078148891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 581241.

The product of its (nonzero) digits is 645120, while the sum is 51.

The square root of 5078148891 is about 71261.1316988441. The cubic root of 5078148891 is about 1718.8387793683.

The spelling of 5078148891 in words is "five billion, seventy-eight million, one hundred forty-eight thousand, eight hundred ninety-one".