388685084057 has 4 divisors (see below), whose sum is σ = 402088018020. Its totient is φ = 375282150096.

The previous prime is 388685083987. The next prime is 388685084087. The reversal of 388685084057 is 750480586883.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 243572847961 + 145112236096 = 493531^2 + 380936^2 .

It is a cyclic number.

It is not a de Polignac number, because 388685084057 - 2¹⁶ = 388685018521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (388685084087) 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, 6701466938 + ... + 6701466995.

It is an arithmetic number, because the mean of its divisors is an integer number (100522004505).

Almost surely, 2^388685084057 is an apocalyptic number.

It is an amenable number.

388685084057 is a deficient number, since it is larger than the sum of its proper divisors (13402933963).

388685084057 is a wasteful number, since it uses less digits than its factorization.

388685084057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13402933962.

The product of its (nonzero) digits is 51609600, while the sum is 62.

The spelling of 388685084057 in words is "three hundred eighty-eight billion, six hundred eighty-five million, eighty-four thousand, fifty-seven".