7725732073 has 2 divisors, whose sum is σ = 7725732074. Its totient is φ = 7725732072.

The previous prime is 7725732043. The next prime is 7725732137. The reversal of 7725732073 is 3702375277.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3955403664 + 3770328409 = 62892^2 + 61403^2 .

It is a cyclic number.

It is not a de Polignac number, because 7725732073 - 2²⁹ = 7188861161 is a prime.

It is not a weakly prime, because it can be changed into another prime (7725732013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3862866036 + 3862866037.

It is an arithmetic number, because the mean of its divisors is an integer number (3862866037).

Almost surely, 2^7725732073 is an apocalyptic number.

It is an amenable number.

7725732073 is a deficient number, since it is larger than the sum of its proper divisors (1).

7725732073 is an equidigital number, since it uses as much as digits as its factorization.

7725732073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432180, while the sum is 43.

The square root of 7725732073 is about 87896.1436753627. The cubic root of 7725732073 is about 1976.8780574318.

The spelling of 7725732073 in words is "seven billion, seven hundred twenty-five million, seven hundred thirty-two thousand, seventy-three".