382639293557 has 4 divisors (see below), whose sum is σ = 386427801516. Its totient is φ = 378850785600.

The previous prime is 382639293541. The next prime is 382639293559. The reversal of 382639293557 is 755392936283.

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 172715879281 + 209923414276 = 415591^2 + 458174^2 .

It is a cyclic number.

It is not a de Polignac number, because 382639293557 - 2⁴ = 382639293541 is a prime.

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 382639293557.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (382639293559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1894253828 + ... + 1894254029.

It is an arithmetic number, because the mean of its divisors is an integer number (96606950379).

Almost surely, 2^382639293557 is an apocalyptic number.

It is an amenable number.

382639293557 is a deficient number, since it is larger than the sum of its proper divisors (3788507959).

382639293557 is a wasteful number, since it uses less digits than its factorization.

382639293557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3788507958.

The product of its digits is 73483200, while the sum is 62.

The spelling of 382639293557 in words is "three hundred eighty-two billion, six hundred thirty-nine million, two hundred ninety-three thousand, five hundred fifty-seven".