720530533872 has 30 divisors (see below), whose sum is σ = 2016484758392. Its totient is φ = 240176844576.

The previous prime is 720530533871. The next prime is 720530533883. The reversal of 720530533872 is 278335035027.

720530533872 is a `hidden beast` number, since 7 + 2 + 0 + 5 + 30 + 533 + 87 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720530533871) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2501841988 + ... + 2501842275.

Almost surely, 2^720530533872 is an apocalyptic number.

720530533872 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

720530533872 is an abundant number, since it is smaller than the sum of its proper divisors (1295954224520).

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

720530533872 is a wasteful number, since it uses less digits than its factorization.

720530533872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5003684277 (or 5003684268 counting only the distinct ones).

The product of its (nonzero) digits is 1058400, while the sum is 45.

Adding to 720530533872 its reverse (278335035027), we get a palindrome (998865568899).

The spelling of 720530533872 in words is "seven hundred twenty billion, five hundred thirty million, five hundred thirty-three thousand, eight hundred seventy-two".