30630775261 has 16 divisors (see below), whose sum is σ = 30980791296. Its totient is φ = 30283470000.

The previous prime is 30630775243. The next prime is 30630775271. The reversal of 30630775261 is 16257703603.

It is a cyclic number.

It is not a de Polignac number, because 30630775261 - 2²³ = 30622386653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30630775271) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 28075326 + ... + 28076416.

It is an arithmetic number, because the mean of its divisors is an integer number (1936299456).

Almost surely, 2^30630775261 is an apocalyptic number.

It is an amenable number.

30630775261 is a deficient number, since it is larger than the sum of its proper divisors (350016035).

30630775261 is a wasteful number, since it uses less digits than its factorization.

30630775261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2064.

The product of its (nonzero) digits is 158760, while the sum is 40.

The spelling of 30630775261 in words is "thirty billion, six hundred thirty million, seven hundred seventy-five thousand, two hundred sixty-one".