720702100400 has 60 divisors (see below), whose sum is σ = 1833338977992. Its totient is φ = 271323141120.

The previous prime is 720702100387. The next prime is 720702100403. The reversal of 720702100400 is 4001207027.

720702100400 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (720702100403) 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, 52986002 + ... + 52999601.

Almost surely, 2^720702100400 is an apocalyptic number.

It is an amenable number.

720702100400 is an abundant number, since it is smaller than the sum of its proper divisors (1112636877592).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

720702100400 is a wasteful number, since it uses less digits than its factorization.

720702100400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105985638 (or 105985627 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 23.

Adding to 720702100400 its reverse (4001207027), we get a palindrome (724703307427).

The spelling of 720702100400 in words is "seven hundred twenty billion, seven hundred two million, one hundred thousand, four hundred".