7473743449 has 2 divisors, whose sum is σ = 7473743450. Its totient is φ = 7473743448.

The previous prime is 7473743401. The next prime is 7473743471. The reversal of 7473743449 is 9443473747.

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., 6373627225 + 1100116224 = 79835^2 + 33168^2 .

It is a cyclic number.

It is not a de Polignac number, because 7473743449 - 2⁹ = 7473742937 is a prime.

It is a super-2 number, since 2×7473743449² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7473743396 and 7473743405.

It is not a weakly prime, because it can be changed into another prime (7473741449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3736871724 + 3736871725.

It is an arithmetic number, because the mean of its divisors is an integer number (3736871725).

Almost surely, 2^7473743449 is an apocalyptic number.

It is an amenable number.

7473743449 is a deficient number, since it is larger than the sum of its proper divisors (1).

7473743449 is an equidigital number, since it uses as much as digits as its factorization.

7473743449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7112448, while the sum is 52.

The square root of 7473743449 is about 86450.8152014774. The cubic root of 7473743449 is about 1955.1469070646.

The spelling of 7473743449 in words is "seven billion, four hundred seventy-three million, seven hundred forty-three thousand, four hundred forty-nine".