30644642363 has 2 divisors, whose sum is σ = 30644642364. Its totient is φ = 30644642362.

The previous prime is 30644642359. The next prime is 30644642387. The reversal of 30644642363 is 36324644603.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30644642363 - 2² = 30644642359 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30644642363.

It is not a weakly prime, because it can be changed into another prime (30644642393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15322321181 + 15322321182.

It is an arithmetic number, because the mean of its divisors is an integer number (15322321182).

Almost surely, 2^30644642363 is an apocalyptic number.

30644642363 is a deficient number, since it is larger than the sum of its proper divisors (1).

30644642363 is an equidigital number, since it uses as much as digits as its factorization.

30644642363 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 746496, while the sum is 41.

The spelling of 30644642363 in words is "thirty billion, six hundred forty-four million, six hundred forty-two thousand, three hundred sixty-three".