720452456361 has 12 divisors (see below), whose sum is σ = 1135258416240. Its totient is φ = 436637852280.

The previous prime is 720452456357. The next prime is 720452456417. The reversal of 720452456361 is 163654254027.

720452456361 is a `hidden beast` number, since 7 + 2 + 0 + 4 + 5 + 2 + 4 + 5 + 636 + 1 = 666.

It is not a de Polignac number, because 720452456361 - 2² = 720452456357 is a prime.

It is not an unprimeable number, because it can be changed into a prime (720452452361) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3638648671 + ... + 3638648868.

It is an arithmetic number, because the mean of its divisors is an integer number (94604868020).

Almost surely, 2^720452456361 is an apocalyptic number.

It is an amenable number.

720452456361 is a deficient number, since it is larger than the sum of its proper divisors (414805959879).

720452456361 is a wasteful number, since it uses less digits than its factorization.

720452456361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7277297556 (or 7277297553 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 45.

The spelling of 720452456361 in words is "seven hundred twenty billion, four hundred fifty-two million, four hundred fifty-six thousand, three hundred sixty-one".