633668482369 has 8 divisors (see below), whose sum is σ = 684166490280. Its totient is φ = 583421085696.

The previous prime is 633668482361. The next prime is 633668482451. The reversal of 633668482369 is 963284866336.

It can be written as a sum of positive squares in 4 ways, for example, as 67693632400 + 565974849969 = 260180^2 + 752313^2 .

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 633668482369 - 2³ = 633668482361 is a prime.

It is a super-2 number, since 2×633668482369² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 633668482369.

It is not an unprimeable number, because it can be changed into a prime (633668482361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62647552 + ... + 62657665.

It is an arithmetic number, because the mean of its divisors is an integer number (85520811285).

Almost surely, 2^633668482369 is an apocalyptic number.

It is an amenable number.

633668482369 is a deficient number, since it is larger than the sum of its proper divisors (50498007911).

633668482369 is a wasteful number, since it uses less digits than its factorization.

633668482369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125305619.

The product of its digits is 161243136, while the sum is 64.

The spelling of 633668482369 in words is "six hundred thirty-three billion, six hundred sixty-eight million, four hundred eighty-two thousand, three hundred sixty-nine".