633988870445 has 8 divisors (see below), whose sum is σ = 869470450944. Its totient is φ = 434735225424.

The previous prime is 633988870399. The next prime is 633988870519. The reversal of 633988870445 is 544078889336.

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

It is a cyclic number.

It is not a de Polignac number, because 633988870445 - 2⁶ = 633988870381 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 9056983829 + ... + 9056983898.

It is an arithmetic number, because the mean of its divisors is an integer number (108683806368).

Almost surely, 2^633988870445 is an apocalyptic number.

It is an amenable number.

633988870445 is a deficient number, since it is larger than the sum of its proper divisors (235481580499).

633988870445 is a wasteful number, since it uses less digits than its factorization.

633988870445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18113967739.

The product of its (nonzero) digits is 139345920, while the sum is 65.

The spelling of 633988870445 in words is "six hundred thirty-three billion, nine hundred eighty-eight million, eight hundred seventy thousand, four hundred forty-five".