620633506443 has 4 divisors (see below), whose sum is σ = 827511341928. Its totient is φ = 413755670960.

The previous prime is 620633506379. The next prime is 620633506453. The reversal of 620633506443 is 344605336026.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 620633506443 - 2⁶ = 620633506379 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 620633506395 and 620633506404.

It is not an unprimeable number, because it can be changed into a prime (620633506453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103438917738 + ... + 103438917743.

It is an arithmetic number, because the mean of its divisors is an integer number (206877835482).

Almost surely, 2^620633506443 is an apocalyptic number.

620633506443 is a deficient number, since it is larger than the sum of its proper divisors (206877835485).

620633506443 is a wasteful number, since it uses less digits than its factorization.

620633506443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206877835484.

The product of its (nonzero) digits is 933120, while the sum is 42.

The spelling of 620633506443 in words is "six hundred twenty billion, six hundred thirty-three million, five hundred six thousand, four hundred forty-three".