2579148891 has 16 divisors (see below), whose sum is σ = 4168321920. Its totient is φ = 1563120360.

The previous prime is 2579148883. The next prime is 2579148917. The reversal of 2579148891 is 1988419752.

It is a happy number.

2579148891 is a `hidden beast` number, since 2 + 5 + 79 + 1 + 488 + 91 = 666.

It is not a de Polignac number, because 2579148891 - 2³ = 2579148883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2579148491) 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 15 ways as a sum of consecutive naturals, for example, 4341705 + ... + 4342298.

It is an arithmetic number, because the mean of its divisors is an integer number (260520120).

Almost surely, 2^2579148891 is an apocalyptic number.

2579148891 is a deficient number, since it is larger than the sum of its proper divisors (1589173029).

2579148891 is a wasteful number, since it uses less digits than its factorization.

2579148891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8684023 (or 8684017 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 54.

The square root of 2579148891 is about 50785.3216096935. The cubic root of 2579148891 is about 1371.3831363156.

The spelling of 2579148891 in words is "two billion, five hundred seventy-nine million, one hundred forty-eight thousand, eight hundred ninety-one".