7212725073 has 6 divisors (see below), whose sum is σ = 10418380674. Its totient is φ = 4808483376.

The previous prime is 7212725057. The next prime is 7212725077. The reversal of 7212725073 is 3705272127.

7212725073 is a `hidden beast` number, since 72 + 12 + 72 + 507 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 3635728209 + 3576996864 = 60297^2 + 59808^2 .

It is not a de Polignac number, because 7212725073 - 2⁴ = 7212725057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7212725077) 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 in 5 ways as a sum of consecutive naturals, for example, 400706940 + ... + 400706957.

It is an arithmetic number, because the mean of its divisors is an integer number (1736396779).

Almost surely, 2^7212725073 is an apocalyptic number.

It is an amenable number.

7212725073 is a deficient number, since it is larger than the sum of its proper divisors (3205655601).

7212725073 is a wasteful number, since it uses less digits than its factorization.

7212725073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 801413903 (or 801413900 counting only the distinct ones).

The product of its (nonzero) digits is 41160, while the sum is 36.

The square root of 7212725073 is about 84927.7638525824. The cubic root of 7212725073 is about 1932.1156851436.

The spelling of 7212725073 in words is "seven billion, two hundred twelve million, seven hundred twenty-five thousand, seventy-three".