238898668747 has 2 divisors, whose sum is σ = 238898668748. Its totient is φ = 238898668746.

The previous prime is 238898668733. The next prime is 238898668763. The reversal of 238898668747 is 747866898832.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-238898668747 is a prime.

It is not a weakly prime, because it can be changed into another prime (238898668727) 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, 119449334373 + 119449334374.

It is an arithmetic number, because the mean of its divisors is an integer number (119449334374).

Almost surely, 2^238898668747 is an apocalyptic number.

238898668747 is a deficient number, since it is larger than the sum of its proper divisors (1).

238898668747 is an equidigital number, since it uses as much as digits as its factorization.

238898668747 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1560674304, while the sum is 76.

The spelling of 238898668747 in words is "two hundred thirty-eight billion, eight hundred ninety-eight million, six hundred sixty-eight thousand, seven hundred forty-seven".