387984922559 has 4 divisors (see below), whose sum is σ = 417829916616. Its totient is φ = 358139928504.

The previous prime is 387984922541. The next prime is 387984922579. The reversal of 387984922559 is 955229489783.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-387984922559 is a prime.

It is a super-2 number, since 2×387984922559² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 387984922492 and 387984922501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387984922579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14922497009 + ... + 14922497034.

It is an arithmetic number, because the mean of its divisors is an integer number (104457479154).

Almost surely, 2^387984922559 is an apocalyptic number.

387984922559 is a deficient number, since it is larger than the sum of its proper divisors (29844994057).

387984922559 is a wasteful number, since it uses less digits than its factorization.

387984922559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29844994056.

The product of its digits is 391910400, while the sum is 71.

The spelling of 387984922559 in words is "three hundred eighty-seven billion, nine hundred eighty-four million, nine hundred twenty-two thousand, five hundred fifty-nine".