30606920961 has 8 divisors (see below), whose sum is σ = 42125654784. Its totient is φ = 19746400560.

The previous prime is 30606920821. The next prime is 30606920999. The reversal of 30606920961 is 16902960603.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30606920961 - 2¹³ = 30606912769 is a prime.

It is a super-2 number, since 2×30606920961² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30606920261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164553246 + ... + 164553431.

It is an arithmetic number, because the mean of its divisors is an integer number (5265706848).

Almost surely, 2^30606920961 is an apocalyptic number.

30606920961 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

30606920961 is a deficient number, since it is larger than the sum of its proper divisors (11518733823).

30606920961 is a wasteful number, since it uses less digits than its factorization.

30606920961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329106711.

The product of its (nonzero) digits is 104976, while the sum is 42.

The spelling of 30606920961 in words is "thirty billion, six hundred six million, nine hundred twenty thousand, nine hundred sixty-one".