238881091679 has 2 divisors, whose sum is σ = 238881091680. Its totient is φ = 238881091678.

The previous prime is 238881091661. The next prime is 238881091723. The reversal of 238881091679 is 976190188832.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 238881091679 - 2²⁴ = 238864314463 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (238881094679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119440545839 + 119440545840.

It is an arithmetic number, because the mean of its divisors is an integer number (119440545840).

Almost surely, 2^238881091679 is an apocalyptic number.

238881091679 is a deficient number, since it is larger than the sum of its proper divisors (1).

238881091679 is an equidigital number, since it uses as much as digits as its factorization.

238881091679 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10450944, while the sum is 62.

The spelling of 238881091679 in words is "two hundred thirty-eight billion, eight hundred eighty-one million, ninety-one thousand, six hundred seventy-nine".