320042299847 has 2 divisors, whose sum is σ = 320042299848. Its totient is φ = 320042299846.

The previous prime is 320042299807. The next prime is 320042299879. The reversal of 320042299847 is 748992240023.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 320042299847 - 2³⁶ = 251322823111 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 320042299795 and 320042299804.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320042299807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160021149923 + 160021149924.

It is an arithmetic number, because the mean of its divisors is an integer number (160021149924).

Almost surely, 2^320042299847 is an apocalyptic number.

320042299847 is a deficient number, since it is larger than the sum of its proper divisors (1).

320042299847 is an equidigital number, since it uses as much as digits as its factorization.

320042299847 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1741824, while the sum is 50.

The spelling of 320042299847 in words is "three hundred twenty billion, forty-two million, two hundred ninety-nine thousand, eight hundred forty-seven".