308248407793 has 2 divisors, whose sum is σ = 308248407794. Its totient is φ = 308248407792.

The previous prime is 308248407791. The next prime is 308248407821. The reversal of 308248407793 is 397704842803.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 273253971169 + 34994436624 = 522737^2 + 187068^2 .

It is a cyclic number.

It is not a de Polignac number, because 308248407793 - 2¹ = 308248407791 is a prime.

Together with 308248407791, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (308248407791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 154124203896 + 154124203897.

It is an arithmetic number, because the mean of its divisors is an integer number (154124203897).

Almost surely, 2^308248407793 is an apocalyptic number.

It is an amenable number.

308248407793 is a deficient number, since it is larger than the sum of its proper divisors (1).

308248407793 is an equidigital number, since it uses as much as digits as its factorization.

308248407793 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8128512, while the sum is 55.

The spelling of 308248407793 in words is "three hundred eight billion, two hundred forty-eight million, four hundred seven thousand, seven hundred ninety-three".