388046342641 has 4 divisors (see below), whose sum is σ = 388107238132. Its totient is φ = 387985447152.

The previous prime is 388046342597. The next prime is 388046342647. The reversal of 388046342641 is 146243640883.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 146243640883 = 151 ⋅968500933.

It can be written as a sum of positive squares in 2 ways, for example, as 273173475600 + 114872867041 = 522660^2 + 338929^2 .

It is a cyclic number.

It is not a de Polignac number, because 388046342641 - 2⁷ = 388046342513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (388046342647) 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, 30438186 + ... + 30450931.

It is an arithmetic number, because the mean of its divisors is an integer number (97026809533).

Almost surely, 2^388046342641 is an apocalyptic number.

It is an amenable number.

388046342641 is a deficient number, since it is larger than the sum of its proper divisors (60895491).

388046342641 is an equidigital number, since it uses as much as digits as its factorization.

388046342641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60895490.

The product of its (nonzero) digits is 2654208, while the sum is 49.

The spelling of 388046342641 in words is "three hundred eighty-eight billion, forty-six million, three hundred forty-two thousand, six hundred forty-one".