4779958121 has 4 divisors (see below), whose sum is σ = 4840464000. Its totient is φ = 4719452244.

The previous prime is 4779958097. The next prime is 4779958123. The reversal of 4779958121 is 1218599774.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4779958121 - 2¹⁴ = 4779941737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4779958123) 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, 30252821 + ... + 30252978.

It is an arithmetic number, because the mean of its divisors is an integer number (1210116000).

Almost surely, 2^4779958121 is an apocalyptic number.

It is an amenable number.

4779958121 is a deficient number, since it is larger than the sum of its proper divisors (60505879).

4779958121 is an equidigital number, since it uses as much as digits as its factorization.

4779958121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60505878.

The product of its digits is 1270080, while the sum is 53.

The square root of 4779958121 is about 69137.2412018299. The cubic root of 4779958121 is about 1684.5142810126.

The spelling of 4779958121 in words is "four billion, seven hundred seventy-nine million, nine hundred fifty-eight thousand, one hundred twenty-one".