388850364421 has 2 divisors, whose sum is σ = 388850364422. Its totient is φ = 388850364420.

The previous prime is 388850364401. The next prime is 388850364451. The reversal of 388850364421 is 124463058883.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 341277956100 + 47572408321 = 584190^2 + 218111^2 .

It is a cyclic number.

It is not a de Polignac number, because 388850364421 - 2¹⁷ = 388850233349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (388850364401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194425182210 + 194425182211.

It is an arithmetic number, because the mean of its divisors is an integer number (194425182211).

Almost surely, 2^388850364421 is an apocalyptic number.

It is an amenable number.

388850364421 is a deficient number, since it is larger than the sum of its proper divisors (1).

388850364421 is an equidigital number, since it uses as much as digits as its factorization.

388850364421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4423680, while the sum is 52.

The spelling of 388850364421 in words is "three hundred eighty-eight billion, eight hundred fifty million, three hundred sixty-four thousand, four hundred twenty-one".