388853328841 has 4 divisors (see below), whose sum is σ = 388891548052. Its totient is φ = 388815109632.

The previous prime is 388853328719. The next prime is 388853328881. The reversal of 388853328841 is 148823358883.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 148823358883 = 23 ⋅6470580821.

It can be written as a sum of positive squares in 2 ways, for example, as 292703722441 + 96149606400 = 541021^2 + 310080^2 .

It is a cyclic number.

It is not a de Polignac number, because 388853328841 - 2¹³ = 388853320649 is a prime.

It is a super-2 number, since 2×388853328841² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 388853328841.

It is not an unprimeable number, because it can be changed into a prime (388853328881) 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, 19094340 + ... + 19114693.

It is an arithmetic number, because the mean of its divisors is an integer number (97222887013).

Almost surely, 2^388853328841 is an apocalyptic number.

It is an amenable number.

388853328841 is a deficient number, since it is larger than the sum of its proper divisors (38219211).

388853328841 is a wasteful number, since it uses less digits than its factorization.

388853328841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38219210.

The product of its digits is 35389440, while the sum is 61.

The spelling of 388853328841 in words is "three hundred eighty-eight billion, eight hundred fifty-three million, three hundred twenty-eight thousand, eight hundred forty-one".