4913999989 has 8 divisors (see below), whose sum is σ = 4931324888. Its totient is φ = 4896702720.

The previous prime is 4913999971. The next prime is 4914000029. The reversal of 4913999989 is 9899993194.

It can be written as a sum of positive squares in 4 ways, for example, as 21696964 + 4892303025 = 4658^2 + 69945^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4913999989 - 2⁷ = 4913999861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4913990989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 388249 + ... + 400705.

It is an arithmetic number, because the mean of its divisors is an integer number (616415611).

Almost surely, 2^4913999989 is an apocalyptic number.

It is an amenable number.

4913999989 is a deficient number, since it is larger than the sum of its proper divisors (17324899).

4913999989 is a wasteful number, since it uses less digits than its factorization.

4913999989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13815.

The product of its digits is 51018336, while the sum is 70.

The square root of 4913999989 is about 70099.9285948281. The cubic root of 4913999989 is about 1700.1153311605.

The spelling of 4913999989 in words is "four billion, nine hundred thirteen million, nine hundred ninety-nine thousand, nine hundred eighty-nine".