632969391845 has 16 divisors (see below), whose sum is σ = 888260039040. Its totient is φ = 423942289344.

The previous prime is 632969391841. The next prime is 632969391853. The reversal of 632969391845 is 548193969236.

It is not a de Polignac number, because 632969391845 - 2² = 632969391841 is a prime.

It is a Smith number, since the sum of its digits (65) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (632969391841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 210287330 + ... + 210290339.

It is an arithmetic number, because the mean of its divisors is an integer number (55516252440).

Almost surely, 2^632969391845 is an apocalyptic number.

It is an amenable number.

632969391845 is a deficient number, since it is larger than the sum of its proper divisors (255290647195).

632969391845 is a wasteful number, since it uses less digits than its factorization.

632969391845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420577724.

The product of its digits is 75582720, while the sum is 65.

The spelling of 632969391845 in words is "six hundred thirty-two billion, nine hundred sixty-nine million, three hundred ninety-one thousand, eight hundred forty-five".