720454831900 has 36 divisors (see below), whose sum is σ = 1564955293048. Its totient is φ = 287892843840.

The previous prime is 720454831883. The next prime is 720454831907. The reversal of 720454831900 is 9138454027.

It is a super-2 number, since 2×720454831900² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720454831907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3513414 + ... + 3712813.

Almost surely, 2^720454831900 is an apocalyptic number.

It is an amenable number.

720454831900 is an abundant number, since it is smaller than the sum of its proper divisors (844500461148).

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

720454831900 is a wasteful number, since it uses less digits than its factorization.

720454831900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7227238 (or 7227231 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 43.

The spelling of 720454831900 in words is "seven hundred twenty billion, four hundred fifty-four million, eight hundred thirty-one thousand, nine hundred".