388051328129 has 2 divisors, whose sum is σ = 388051328130. Its totient is φ = 388051328128.

The previous prime is 388051328111. The next prime is 388051328131. The reversal of 388051328129 is 921823150883.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 383963643904 + 4087684225 = 619648^2 + 63935^2 .

It is a cyclic number.

It is not a de Polignac number, because 388051328129 - 2²⁰ = 388050279553 is a prime.

Together with 388051328131, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (388051328029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194025664064 + 194025664065.

It is an arithmetic number, because the mean of its divisors is an integer number (194025664065).

Almost surely, 2^388051328129 is an apocalyptic number.

It is an amenable number.

388051328129 is a deficient number, since it is larger than the sum of its proper divisors (1).

388051328129 is an equidigital number, since it uses as much as digits as its factorization.

388051328129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 829440, while the sum is 50.

The spelling of 388051328129 in words is "three hundred eighty-eight billion, fifty-one million, three hundred twenty-eight thousand, one hundred twenty-nine".