388542954361 has 4 divisors (see below), whose sum is σ = 401940987300. Its totient is φ = 375144921424.

The previous prime is 388542954353. The next prime is 388542954409. The reversal of 388542954361 is 163459245883.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 163459245883 = 55051 ⋅2969233.

It can be written as a sum of positive squares in 2 ways, for example, as 97067141136 + 291475813225 = 311556^2 + 539885^2 .

It is a cyclic number.

It is not a de Polignac number, because 388542954361 - 2³ = 388542954353 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 388542954296 and 388542954305.

It is not an unprimeable number, because it can be changed into a prime (388542954311) 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, 6699016426 + ... + 6699016483.

It is an arithmetic number, because the mean of its divisors is an integer number (100485246825).

Almost surely, 2^388542954361 is an apocalyptic number.

It is an amenable number.

388542954361 is a deficient number, since it is larger than the sum of its proper divisors (13398032939).

388542954361 is a wasteful number, since it uses less digits than its factorization.

388542954361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13398032938.

The product of its digits is 24883200, while the sum is 58.

The spelling of 388542954361 in words is "three hundred eighty-eight billion, five hundred forty-two million, nine hundred fifty-four thousand, three hundred sixty-one".