30642244361 has 4 divisors (see below), whose sum is σ = 31011428112. Its totient is φ = 30273060612.

The previous prime is 30642244349. The next prime is 30642244513. The reversal of 30642244361 is 16344224603.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30642244361 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30642244261) 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, 184591751 + ... + 184591916.

It is an arithmetic number, because the mean of its divisors is an integer number (7752857028).

Almost surely, 2^30642244361 is an apocalyptic number.

It is an amenable number.

30642244361 is a deficient number, since it is larger than the sum of its proper divisors (369183751).

30642244361 is an equidigital number, since it uses as much as digits as its factorization.

30642244361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369183750.

The product of its (nonzero) digits is 82944, while the sum is 35.

Adding to 30642244361 its reverse (16344224603), we get a palindrome (46986468964).

The spelling of 30642244361 in words is "thirty billion, six hundred forty-two million, two hundred forty-four thousand, three hundred sixty-one".