7235745389 has 2 divisors, whose sum is σ = 7235745390. Its totient is φ = 7235745388.

The previous prime is 7235745383. The next prime is 7235745401. The reversal of 7235745389 is 9835475327.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6797178025 + 438567364 = 82445^2 + 20942^2 .

It is a cyclic number.

It is not a de Polignac number, because 7235745389 - 2²⁸ = 6967309933 is a prime.

It is a super-2 number, since 2×7235745389² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7235745389.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7235745383) 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, 3617872694 + 3617872695.

It is an arithmetic number, because the mean of its divisors is an integer number (3617872695).

Almost surely, 2^7235745389 is an apocalyptic number.

It is an amenable number.

7235745389 is a deficient number, since it is larger than the sum of its proper divisors (1).

7235745389 is an equidigital number, since it uses as much as digits as its factorization.

7235745389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6350400, while the sum is 53.

The square root of 7235745389 is about 85063.1846864435. The cubic root of 7235745389 is about 1934.1690319693.

The spelling of 7235745389 in words is "seven billion, two hundred thirty-five million, seven hundred forty-five thousand, three hundred eighty-nine".