4979878793 has 4 divisors (see below), whose sum is σ = 4980416148. Its totient is φ = 4979341440.

The previous prime is 4979878789. The next prime is 4979878847. The reversal of 4979878793 is 3978789794.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2861394064 + 2118484729 = 53492^2 + 46027^2 .

It is a cyclic number.

It is not a de Polignac number, because 4979878793 - 2² = 4979878789 is a prime.

It is a super-2 number, since 2×4979878793² = 49598385585942273698, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4979878723) 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, 254528 + ... + 273393.

It is an arithmetic number, because the mean of its divisors is an integer number (1245104037).

Almost surely, 2^4979878793 is an apocalyptic number.

It is an amenable number.

4979878793 is a deficient number, since it is larger than the sum of its proper divisors (537355).

4979878793 is an equidigital number, since it uses as much as digits as its factorization.

4979878793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537354.

The product of its digits is 192036096, while the sum is 71.

The square root of 4979878793 is about 70568.2562700822. The cubic root of 4979878793 is about 1707.6790775313.

The spelling of 4979878793 in words is "four billion, nine hundred seventy-nine million, eight hundred seventy-eight thousand, seven hundred ninety-three".