4872019913 has 4 divisors (see below), whose sum is σ = 4872434628. Its totient is φ = 4871605200.

The previous prime is 4872019909. The next prime is 4872019939. The reversal of 4872019913 is 3199102784.

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 3449447824 + 1422572089 = 58732^2 + 37717^2 .

It is a cyclic number.

It is not a de Polignac number, because 4872019913 - 2² = 4872019909 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4872019903) 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, 189206 + ... + 213407.

It is an arithmetic number, because the mean of its divisors is an integer number (1218108657).

Almost surely, 2^4872019913 is an apocalyptic number.

It is an amenable number.

4872019913 is a deficient number, since it is larger than the sum of its proper divisors (414715).

4872019913 is a wasteful number, since it uses less digits than its factorization.

4872019913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414714.

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 4872019913 is about 69799.8561101669. The cubic root of 4872019913 is about 1695.2601432123.

The spelling of 4872019913 in words is "four billion, eight hundred seventy-two million, nineteen thousand, nine hundred thirteen".