30606911953 has 4 divisors (see below), whose sum is σ = 31662322740. Its totient is φ = 29551501168.

The previous prime is 30606911947. The next prime is 30606912031. The reversal of 30606911953 is 35911960603.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6592140864 + 24014771089 = 81192^2 + 154967^2 .

It is a cyclic number.

It is not a de Polignac number, because 30606911953 - 2³³ = 22016977361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30606911453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 527705350 + ... + 527705407.

It is an arithmetic number, because the mean of its divisors is an integer number (7915580685).

Almost surely, 2^30606911953 is an apocalyptic number.

It is an amenable number.

30606911953 is a deficient number, since it is larger than the sum of its proper divisors (1055410787).

30606911953 is a wasteful number, since it uses less digits than its factorization.

30606911953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1055410786.

The product of its (nonzero) digits is 131220, while the sum is 43.

The spelling of 30606911953 in words is "thirty billion, six hundred six million, nine hundred eleven thousand, nine hundred fifty-three".