7254744989 has 2 divisors, whose sum is σ = 7254744990. Its totient is φ = 7254744988.

The previous prime is 7254744967. The next prime is 7254745007. The reversal of 7254744989 is 9894474527.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4739220964 + 2515524025 = 68842^2 + 50155^2 .

It is a cyclic number.

It is not a de Polignac number, because 7254744989 - 2⁸ = 7254744733 is a prime.

It is a super-2 number, since 2×7254744989² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7254744949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3627372494 + 3627372495.

It is an arithmetic number, because the mean of its divisors is an integer number (3627372495).

Almost surely, 2^7254744989 is an apocalyptic number.

It is an amenable number.

7254744989 is a deficient number, since it is larger than the sum of its proper divisors (1).

7254744989 is an equidigital number, since it uses as much as digits as its factorization.

7254744989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20321280, while the sum is 59.

The square root of 7254744989 is about 85174.7908069048. The cubic root of 7254744989 is about 1935.8604642570.

The spelling of 7254744989 in words is "seven billion, two hundred fifty-four million, seven hundred forty-four thousand, nine hundred eighty-nine".