620234781576 has 64 divisors (see below), whose sum is σ = 1563350544000. Its totient is φ = 205048639488.

The previous prime is 620234781571. The next prime is 620234781599. The reversal of 620234781576 is 675187432026.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (620234781571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1627266 + ... + 1971918.

It is an arithmetic number, because the mean of its divisors is an integer number (24427352250).

Almost surely, 2^620234781576 is an apocalyptic number.

It is an amenable number.

620234781576 is an abundant number, since it is smaller than the sum of its proper divisors (943115762424).

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

620234781576 is a wasteful number, since it uses less digits than its factorization.

620234781576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345278 (or 345274 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 51.

The spelling of 620234781576 in words is "six hundred twenty billion, two hundred thirty-four million, seven hundred eighty-one thousand, five hundred seventy-six".