4949493905 has 4 divisors (see below), whose sum is σ = 5939392692. Its totient is φ = 3959595120.

The previous prime is 4949493889. The next prime is 4949493943. The reversal of 4949493905 is 5093949494.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5093949494 = 2 ⋅2546974747.

It can be written as a sum of positive squares in 2 ways, for example, as 1153825024 + 3795668881 = 33968^2 + 61609^2 .

It is not a de Polignac number, because 4949493905 - 2⁴ = 4949493889 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 494949386 + ... + 494949395.

It is an arithmetic number, because the mean of its divisors is an integer number (1484848173).

Almost surely, 2^4949493905 is an apocalyptic number.

It is an amenable number.

4949493905 is a deficient number, since it is larger than the sum of its proper divisors (989898787).

4949493905 is an equidigital number, since it uses as much as digits as its factorization.

4949493905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 989898786.

The product of its (nonzero) digits is 6298560, while the sum is 56.

The square root of 4949493905 is about 70352.6396448634. The cubic root of 4949493905 is about 1704.1988369999.

The spelling of 4949493905 in words is "four billion, nine hundred forty-nine million, four hundred ninety-three thousand, nine hundred five".