720784502046 has 256 divisors, whose sum is σ = 1907048908800. Its totient is φ = 197640414720.

The previous prime is 720784502033. The next prime is 720784502047. The reversal of 720784502046 is 640205487027.

It is a happy number.

720784502046 is a `hidden beast` number, since 7 + 20 + 7 + 84 + 502 + 0 + 46 = 666.

It is a super-2 number, since 2×720784502046² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 720784501992 and 720784502010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720784502047) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1901805885 + ... + 1901806263.

It is an arithmetic number, because the mean of its divisors is an integer number (7449409800).

Almost surely, 2^720784502046 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 720784502046, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (953524454400).

720784502046 is an abundant number, since it is smaller than the sum of its proper divisors (1186264406754).

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

720784502046 is an equidigital number, since it uses as much as digits as its factorization.

720784502046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 593 (or 505 counting only the distinct ones).

The product of its (nonzero) digits is 752640, while the sum is 45.

The spelling of 720784502046 in words is "seven hundred twenty billion, seven hundred eighty-four million, five hundred two thousand, forty-six".