190374243847 has 2 divisors, whose sum is σ = 190374243848. Its totient is φ = 190374243846.

The previous prime is 190374243833. The next prime is 190374243853. The reversal of 190374243847 is 748342473091.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-190374243847 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 190374243794 and 190374243803.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (190374243047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95187121923 + 95187121924.

It is an arithmetic number, because the mean of its divisors is an integer number (95187121924).

Almost surely, 2^190374243847 is an apocalyptic number.

190374243847 is a deficient number, since it is larger than the sum of its proper divisors (1).

190374243847 is an equidigital number, since it uses as much as digits as its factorization.

190374243847 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4064256, while the sum is 52.

The spelling of 190374243847 in words is "one hundred ninety billion, three hundred seventy-four million, two hundred forty-three thousand, eight hundred forty-seven".