388732746887 has 2 divisors, whose sum is σ = 388732746888. Its totient is φ = 388732746886.

The previous prime is 388732746797. The next prime is 388732746937. The reversal of 388732746887 is 788647237883.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 388732746887 - 2¹⁸ = 388732484743 is a prime.

It is a super-2 number, since 2×388732746887² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 388732746887.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (388732742887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194366373443 + 194366373444.

It is an arithmetic number, because the mean of its divisors is an integer number (194366373444).

Almost surely, 2^388732746887 is an apocalyptic number.

388732746887 is a deficient number, since it is larger than the sum of its proper divisors (1).

388732746887 is an equidigital number, since it uses as much as digits as its factorization.

388732746887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 606928896, while the sum is 71.

The spelling of 388732746887 in words is "three hundred eighty-eight billion, seven hundred thirty-two million, seven hundred forty-six thousand, eight hundred eighty-seven".