720461813670 has 96 divisors (see below), whose sum is σ = 1942506626112. Its totient is φ = 185115684096.

The previous prime is 720461813587. The next prime is 720461813671. The reversal of 720461813670 is 76318164027.

720461813670 is a `hidden beast` number, since 7 + 20 + 4 + 618 + 1 + 3 + 6 + 7 + 0 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720461813671) 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, 707277 + ... + 1393256.

It is an arithmetic number, because the mean of its divisors is an integer number (20234444022).

Almost surely, 2^720461813670 is an apocalyptic number.

720461813670 is an abundant number, since it is smaller than the sum of its proper divisors (1222044812442).

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

720461813670 is a wasteful number, since it uses less digits than its factorization.

720461813670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2100686 (or 2100683 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

Adding to 720461813670 its reverse (76318164027), we get a palindrome (796779977697).

The spelling of 720461813670 in words is "seven hundred twenty billion, four hundred sixty-one million, eight hundred thirteen thousand, six hundred seventy".