620684570880 has 1080 divisors, whose sum is σ = 2483409962880. Its totient is φ = 146774384640.

The previous prime is 620684570879. The next prime is 620684570999. The reversal of 620684570880 is 88075486026.

620684570880 is a `hidden beast` number, since 6 + 2 + 0 + 68 + 4 + 570 + 8 + 8 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1080).

It is a super-4 number, since 4×620684570880⁴ (a number of 48 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 7478127319 + ... + 7478127401.

Almost surely, 2^620684570880 is an apocalyptic number.

620684570880 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 620684570880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1241704981440).

620684570880 is an abundant number, since it is smaller than the sum of its proper divisors (1862725392000).

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

620684570880 is an equidigital number, since it uses as much as digits as its factorization.

620684570880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289 (or 183 counting only the distinct ones).

The product of its (nonzero) digits is 5160960, while the sum is 54.

The spelling of 620684570880 in words is "six hundred twenty billion, six hundred eighty-four million, five hundred seventy thousand, eight hundred eighty".