253347979847 has 2 divisors, whose sum is σ = 253347979848. Its totient is φ = 253347979846.

The previous prime is 253347979793. The next prime is 253347979853. The reversal of 253347979847 is 748979743352.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 253347979847 - 2¹⁶ = 253347914311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253347979867) 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, 126673989923 + 126673989924.

It is an arithmetic number, because the mean of its divisors is an integer number (126673989924).

Almost surely, 2^253347979847 is an apocalyptic number.

253347979847 is a deficient number, since it is larger than the sum of its proper divisors (1).

253347979847 is an equidigital number, since it uses as much as digits as its factorization.

253347979847 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 320060160, while the sum is 68.

The spelling of 253347979847 in words is "two hundred fifty-three billion, three hundred forty-seven million, nine hundred seventy-nine thousand, eight hundred forty-seven".