238966478311 has 64 divisors (see below), whose sum is σ = 282967603200. Its totient is φ = 199511164800.

The previous prime is 238966478297. The next prime is 238966478321. The reversal of 238966478311 is 113874669832.

It is a cyclic number.

It is not a de Polignac number, because 238966478311 - 2¹¹ = 238966476263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238966478321) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 386052160 + ... + 386052778.

It is an arithmetic number, because the mean of its divisors is an integer number (4421368800).

Almost surely, 2^238966478311 is an apocalyptic number.

238966478311 is a deficient number, since it is larger than the sum of its proper divisors (44001124889).

238966478311 is a wasteful number, since it uses less digits than its factorization.

238966478311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1100.

The product of its digits is 10450944, while the sum is 58.

The spelling of 238966478311 in words is "two hundred thirty-eight billion, nine hundred sixty-six million, four hundred seventy-eight thousand, three hundred eleven".