30640465645 has 8 divisors (see below), whose sum is σ = 36770396256. Its totient is φ = 24511147536.

The previous prime is 30640465613. The next prime is 30640465651. The reversal of 30640465645 is 54656404603.

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 30640465645 - 2⁵ = 30640465613 is a prime.

It is a super-3 number, since 3×30640465645³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34747 + ... + 249976.

It is an arithmetic number, because the mean of its divisors is an integer number (4596299532).

Almost surely, 2^30640465645 is an apocalyptic number.

It is an amenable number.

30640465645 is a deficient number, since it is larger than the sum of its proper divisors (6129930611).

30640465645 is a wasteful number, since it uses less digits than its factorization.

30640465645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306251.

The product of its (nonzero) digits is 1036800, while the sum is 43.

The spelling of 30640465645 in words is "thirty billion, six hundred forty million, four hundred sixty-five thousand, six hundred forty-five".