388230133857 has 4 divisors (see below), whose sum is σ = 517640178480. Its totient is φ = 258820089236.

The previous prime is 388230133847. The next prime is 388230133859. The reversal of 388230133857 is 758331032883.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 388230133857 - 2¹⁸ = 388229871713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (388230133859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64705022307 + ... + 64705022312.

It is an arithmetic number, because the mean of its divisors is an integer number (129410044620).

Almost surely, 2^388230133857 is an apocalyptic number.

It is an amenable number.

388230133857 is a deficient number, since it is larger than the sum of its proper divisors (129410044623).

388230133857 is a wasteful number, since it uses less digits than its factorization.

388230133857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129410044622.

The product of its (nonzero) digits is 2903040, while the sum is 51.

The spelling of 388230133857 in words is "three hundred eighty-eight billion, two hundred thirty million, one hundred thirty-three thousand, eight hundred fifty-seven".