720043407752 has 16 divisors (see below), whose sum is σ = 1365250844700. Its totient is φ = 355976515840.

The previous prime is 720043407679. The next prime is 720043407761. The reversal of 720043407752 is 257704340027.

It can be written as a sum of positive squares in 2 ways, for example, as 708569998756 + 11473408996 = 841766^2 + 107114^2 .

It is a super-2 number, since 2×720043407752² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 505647749 + ... + 505649172.

Almost surely, 2^720043407752 is an apocalyptic number.

It is an amenable number.

720043407752 is a deficient number, since it is larger than the sum of its proper divisors (645207436948).

720043407752 is a wasteful number, since it uses less digits than its factorization.

720043407752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1011297016 (or 1011297012 counting only the distinct ones).

The product of its (nonzero) digits is 329280, while the sum is 41.

Adding to 720043407752 its reverse (257704340027), we get a palindrome (977747747779).

The spelling of 720043407752 in words is "seven hundred twenty billion, forty-three million, four hundred seven thousand, seven hundred fifty-two".