308641847851 has 2 divisors, whose sum is σ = 308641847852. Its totient is φ = 308641847850.

The previous prime is 308641847791. The next prime is 308641847881. The reversal of 308641847851 is 158748146803.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-308641847851 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 308641847792 and 308641847801.

It is not a weakly prime, because it can be changed into another prime (308641847881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 154320923925 + 154320923926.

It is an arithmetic number, because the mean of its divisors is an integer number (154320923926).

Almost surely, 2^308641847851 is an apocalyptic number.

308641847851 is a deficient number, since it is larger than the sum of its proper divisors (1).

308641847851 is an equidigital number, since it uses as much as digits as its factorization.

308641847851 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5160960, while the sum is 55.

The spelling of 308641847851 in words is "three hundred eight billion, six hundred forty-one million, eight hundred forty-seven thousand, eight hundred fifty-one".