4944927989 has 4 divisors (see below), whose sum is σ = 5235806124. Its totient is φ = 4654049856.

The previous prime is 4944927971. The next prime is 4944928003. The reversal of 4944927989 is 9897294494.

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 2179956100 + 2764971889 = 46690^2 + 52583^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4944927989 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4944227989) 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, 145439042 + ... + 145439075.

It is an arithmetic number, because the mean of its divisors is an integer number (1308951531).

Almost surely, 2^4944927989 is an apocalyptic number.

It is an amenable number.

4944927989 is a deficient number, since it is larger than the sum of its proper divisors (290878135).

4944927989 is a wasteful number, since it uses less digits than its factorization.

4944927989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290878134.

The product of its digits is 47029248, while the sum is 65.

The square root of 4944927989 is about 70320.1819465792. The cubic root of 4944927989 is about 1703.6746337282.

The spelling of 4944927989 in words is "four billion, nine hundred forty-four million, nine hundred twenty-seven thousand, nine hundred eighty-nine".