72005030635 has 4 divisors (see below), whose sum is σ = 86406036768. Its totient is φ = 57604024504.

The previous prime is 72005030623. The next prime is 72005030651. The reversal of 72005030635 is 53603050027.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 53603050027 = 2957 ⋅18127511.

It is a cyclic number.

It is not a de Polignac number, because 72005030635 - 2¹⁹ = 72004506347 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72005030597 and 72005030606.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7200503059 + ... + 7200503068.

It is an arithmetic number, because the mean of its divisors is an integer number (21601509192).

Almost surely, 2^72005030635 is an apocalyptic number.

72005030635 is a deficient number, since it is larger than the sum of its proper divisors (14401006133).

72005030635 is a wasteful number, since it uses less digits than its factorization.

72005030635 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14401006132.

The product of its (nonzero) digits is 18900, while the sum is 31.

The spelling of 72005030635 in words is "seventy-two billion, five million, thirty thousand, six hundred thirty-five".