4428772913 has 2 divisors, whose sum is σ = 4428772914. Its totient is φ = 4428772912.

The previous prime is 4428772853. The next prime is 4428772921. The reversal of 4428772913 is 3192778244.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3652147489 + 776625424 = 60433^2 + 27868^2 .

It is a cyclic number.

It is not a de Polignac number, because 4428772913 - 2¹⁴ = 4428756529 is a prime.

It is a super-2 number, since 2×4428772913² = 39228059029845011138, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4428772213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2214386456 + 2214386457.

It is an arithmetic number, because the mean of its divisors is an integer number (2214386457).

Almost surely, 2^4428772913 is an apocalyptic number.

It is an amenable number.

4428772913 is a deficient number, since it is larger than the sum of its proper divisors (1).

4428772913 is an equidigital number, since it uses as much as digits as its factorization.

4428772913 is an evil number, because the sum of its binary digits is even.

The product of its digits is 677376, while the sum is 47.

The square root of 4428772913 is about 66549.0263865671. The cubic root of 4428772913 is about 1642.2066410708.

The spelling of 4428772913 in words is "four billion, four hundred twenty-eight million, seven hundred seventy-two thousand, nine hundred thirteen".