30106920845 has 16 divisors (see below), whose sum is σ = 37312504320. Its totient is φ = 23296852800.

The previous prime is 30106920841. The next prime is 30106920871. The reversal of 30106920845 is 54802960103.

It is a happy number.

It is not a de Polignac number, because 30106920845 - 2² = 30106920841 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30106920799 and 30106920808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30106920841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 266630 + ... + 362360.

It is an arithmetic number, because the mean of its divisors is an integer number (2332031520).

Almost surely, 2^30106920845 is an apocalyptic number.

It is an amenable number.

30106920845 is a deficient number, since it is larger than the sum of its proper divisors (7205583475).

30106920845 is a wasteful number, since it uses less digits than its factorization.

30106920845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97796.

The product of its (nonzero) digits is 51840, while the sum is 38.

The spelling of 30106920845 in words is "thirty billion, one hundred six million, nine hundred twenty thousand, eight hundred forty-five".