645606622034 has 8 divisors (see below), whose sum is σ = 1056447199728. Its totient is φ = 293457555460.

The previous prime is 645606621931. The next prime is 645606622049. The reversal of 645606622034 is 430226606546.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14672877752 + ... + 14672877795.

It is an arithmetic number, because the mean of its divisors is an integer number (132055899966).

Almost surely, 2^645606622034 is an apocalyptic number.

645606622034 is a deficient number, since it is larger than the sum of its proper divisors (410840577694).

645606622034 is a wasteful number, since it uses less digits than its factorization.

645606622034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29345755560.

The product of its (nonzero) digits is 1244160, while the sum is 44.

The spelling of 645606622034 in words is "six hundred forty-five billion, six hundred six million, six hundred twenty-two thousand, thirty-four".