620771471712 has 288 divisors, whose sum is σ = 2065531104000. Its totient is φ = 173181993984.

The previous prime is 620771471707. The next prime is 620771471741. The reversal of 620771471712 is 217174177026.

620771471712 is a `hidden beast` number, since 620 + 7 + 7 + 1 + 4 + 7 + 1 + 7 + 12 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17705143 + ... + 17740169.

It is an arithmetic number, because the mean of its divisors is an integer number (7171983000).

Almost surely, 2^620771471712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 620771471712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1032765552000).

620771471712 is an abundant number, since it is smaller than the sum of its proper divisors (1444759632288).

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

620771471712 is a wasteful number, since it uses less digits than its factorization.

620771471712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35258 (or 35247 counting only the distinct ones).

The product of its (nonzero) digits is 230496, while the sum is 45.

The spelling of 620771471712 in words is "six hundred twenty billion, seven hundred seventy-one million, four hundred seventy-one thousand, seven hundred twelve".