720727272720 has 240 divisors, whose sum is σ = 2979006331392. Its totient is φ = 152065520640.

The previous prime is 720727272697. The next prime is 720727272721. The reversal of 720727272720 is 27272727027.

720727272720 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (720727272721) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5434536 + ... + 5565575.

Almost surely, 2^720727272720 is an apocalyptic number.

720727272720 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

720727272720 is an abundant number, since it is smaller than the sum of its proper divisors (2258279058672).

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

720727272720 is a wasteful number, since it uses less digits than its factorization.

720727272720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11000150 (or 11000141 counting only the distinct ones).

The product of its (nonzero) digits is 537824, while the sum is 45.

Adding to 720727272720 its reverse (27272727027), we get a palindrome (747999999747).

The spelling of 720727272720 in words is "seven hundred twenty billion, seven hundred twenty-seven million, two hundred seventy-two thousand, seven hundred twenty".