238921302690291 has 96 divisors (see below), whose sum is σ = 364344152180736. Its totient is φ = 138439159862400.

The previous prime is 238921302690281. The next prime is 238921302690293. The reversal of 238921302690291 is 192096203129832.

It is a happy number.

It is not a de Polignac number, because 238921302690291 - 2¹⁵ = 238921302657523 is a prime.

It is not an unprimeable number, because it can be changed into a prime (238921302690293) 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 in 95 ways as a sum of consecutive naturals, for example, 1590496176 + ... + 1590646386.

It is an arithmetic number, because the mean of its divisors is an integer number (3795251585216).

Almost surely, 2^{238921302690291} is an apocalyptic number.

238921302690291 is a deficient number, since it is larger than the sum of its proper divisors (125422849490445).

238921302690291 is an equidigital number, since it uses as much as digits as its factorization.

238921302690291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150394 (or 150295 counting only the distinct ones).

The product of its (nonzero) digits is 5038848, while the sum is 57.

The spelling of 238921302690291 in words is "two hundred thirty-eight trillion, nine hundred twenty-one billion, three hundred two million, six hundred ninety thousand, two hundred ninety-one".