620443635432 has 32 divisors (see below), whose sum is σ = 1551547591200. Its totient is φ = 206756078144.

The previous prime is 620443635407. The next prime is 620443635491. The reversal of 620443635432 is 234536344026.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3567483 + ... + 3737354.

It is an arithmetic number, because the mean of its divisors is an integer number (48485862225).

Almost surely, 2^620443635432 is an apocalyptic number.

It is an amenable number.

620443635432 is an abundant number, since it is smaller than the sum of its proper divisors (931103955768).

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

620443635432 is a wasteful number, since it uses less digits than its factorization.

620443635432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7308385 (or 7308381 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 42.

Adding to 620443635432 its reverse (234536344026), we get a palindrome (854979979458).

The spelling of 620443635432 in words is "six hundred twenty billion, four hundred forty-three million, six hundred thirty-five thousand, four hundred thirty-two".