238745916911 has 4 divisors (see below), whose sum is σ = 249126174192. Its totient is φ = 228365659632.

The previous prime is 238745916901. The next prime is 238745916943. The reversal of 238745916911 is 119619547832.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 238745916911 - 2¹⁸ = 238745654767 is a prime.

It is a super-2 number, since 2×238745916911² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238745916901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5190128606 + ... + 5190128651.

It is an arithmetic number, because the mean of its divisors is an integer number (62281543548).

Almost surely, 2^238745916911 is an apocalyptic number.

238745916911 is a deficient number, since it is larger than the sum of its proper divisors (10380257281).

238745916911 is a wasteful number, since it uses less digits than its factorization.

238745916911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10380257280.

The product of its digits is 3265920, while the sum is 56.

The spelling of 238745916911 in words is "two hundred thirty-eight billion, seven hundred forty-five million, nine hundred sixteen thousand, nine hundred eleven".