4949279491 has 4 divisors (see below), whose sum is σ = 5329993312. Its totient is φ = 4568565672.

The previous prime is 4949279441. The next prime is 4949279561. The reversal of 4949279491 is 1949729494.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1949729494 = 2 ⋅974864747.

It is a cyclic number.

It is not a de Polignac number, because 4949279491 - 2²³ = 4940890883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4949279441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 190356891 + ... + 190356916.

It is an arithmetic number, because the mean of its divisors is an integer number (1332498328).

Almost surely, 2^4949279491 is an apocalyptic number.

4949279491 is a deficient number, since it is larger than the sum of its proper divisors (380713821).

4949279491 is a wasteful number, since it uses less digits than its factorization.

4949279491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380713820.

The product of its digits is 5878656, while the sum is 58.

The square root of 4949279491 is about 70351.1157765106. The cubic root of 4949279491 is about 1704.1742277926.

The spelling of 4949279491 in words is "four billion, nine hundred forty-nine million, two hundred seventy-nine thousand, four hundred ninety-one".