635736730345 has 8 divisors (see below), whose sum is σ = 762897717576. Its totient is φ = 508580290176.

The previous prime is 635736730331. The next prime is 635736730379. The reversal of 635736730345 is 543037637536.

It can be written as a sum of positive squares in 4 ways, for example, as 64982167056 + 570754563289 = 254916^2 + 755483^2 .

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 635736730345 - 2⁵ = 635736730313 is a prime.

It is a super-2 number, since 2×635736730345² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 635736730292 and 635736730301.

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, 821212 + ... + 1394941.

It is an arithmetic number, because the mean of its divisors is an integer number (95362214697).

Almost surely, 2^635736730345 is an apocalyptic number.

It is an amenable number.

635736730345 is a deficient number, since it is larger than the sum of its proper divisors (127160987231).

635736730345 is a wasteful number, since it uses less digits than its factorization.

635736730345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2273531.

The product of its (nonzero) digits is 14288400, while the sum is 52.

The spelling of 635736730345 in words is "six hundred thirty-five billion, seven hundred thirty-six million, seven hundred thirty thousand, three hundred forty-five".