238776433811 has 4 divisors (see below), whose sum is σ = 240241320072. Its totient is φ = 237311547552.

The previous prime is 238776433793. The next prime is 238776433853. The reversal of 238776433811 is 118334677832.

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 238776433811 - 2⁶ = 238776433747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (238776433871) 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, 732442886 + ... + 732443211.

It is an arithmetic number, because the mean of its divisors is an integer number (60060330018).

Almost surely, 2^238776433811 is an apocalyptic number.

238776433811 is a deficient number, since it is larger than the sum of its proper divisors (1464886261).

238776433811 is a wasteful number, since it uses less digits than its factorization.

238776433811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1464886260.

The product of its digits is 4064256, while the sum is 53.

The spelling of 238776433811 in words is "two hundred thirty-eight billion, seven hundred seventy-six million, four hundred thirty-three thousand, eight hundred eleven".