720264181825 has 12 divisors (see below), whose sum is σ = 923925089340. Its totient is φ = 556341988160.

The previous prime is 720264181697. The next prime is 720264181837. The reversal of 720264181825 is 528181462027.

It can be written as a sum of positive squares in 6 ways, for example, as 41606208576 + 678657973249 = 203976^2 + 823807^2 .

It is not a de Polignac number, because 720264181825 - 2⁷ = 720264181697 is a prime.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 496733194 + ... + 496734643.

It is an arithmetic number, because the mean of its divisors is an integer number (76993757445).

Almost surely, 2^720264181825 is an apocalyptic number.

It is an amenable number.

720264181825 is a deficient number, since it is larger than the sum of its proper divisors (203660907515).

720264181825 is a wasteful number, since it uses less digits than its factorization.

720264181825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 993467876 (or 993467871 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 46.

The spelling of 720264181825 in words is "seven hundred twenty billion, two hundred sixty-four million, one hundred eighty-one thousand, eight hundred twenty-five".