620804708460 has 240 divisors, whose sum is σ = 1963433545920. Its totient is φ = 164195942400.

The previous prime is 620804708423. The next prime is 620804708521. The reversal of 620804708460 is 64807408026.

620804708460 is a `hidden beast` number, since 6 + 20 + 80 + 470 + 84 + 6 + 0 = 666.

It is a super-3 number, since 3×620804708460³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 197896012 + ... + 197899148.

It is an arithmetic number, because the mean of its divisors is an integer number (8180973108).

Almost surely, 2^620804708460 is an apocalyptic number.

620804708460 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 620804708460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (981716772960).

620804708460 is an abundant number, since it is smaller than the sum of its proper divisors (1342628837460).

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

620804708460 is a wasteful number, since it uses less digits than its factorization.

620804708460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4118 (or 4107 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 45.

The spelling of 620804708460 in words is "six hundred twenty billion, eight hundred four million, seven hundred eight thousand, four hundred sixty".