387557784167841 has 24 divisors (see below), whose sum is σ = 661839237334080. Its totient is φ = 213824984367456.

The previous prime is 387557784167831. The next prime is 387557784167849. The reversal of 387557784167841 is 148761487755783.

387557784167841 is a `hidden beast` number, since 3 + 8 + 7 + 5 + 57 + 78 + 416 + 7 + 84 + 1 = 666.

It is not a de Polignac number, because 387557784167841 - 2¹⁴ = 387557784151457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (387557784167849) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 106063978515 + ... + 106063982168.

It is an arithmetic number, because the mean of its divisors is an integer number (27576634888920).

Almost surely, 2^{387557784167841} is an apocalyptic number.

It is an amenable number.

387557784167841 is a deficient number, since it is larger than the sum of its proper divisors (274281453166239).

387557784167841 is a wasteful number, since it uses less digits than its factorization.

387557784167841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212127960725 (or 212127960722 counting only the distinct ones).

The product of its digits is 8851046400, while the sum is 81.

The spelling of 387557784167841 in words is "three hundred eighty-seven trillion, five hundred fifty-seven billion, seven hundred eighty-four million, one hundred sixty-seven thousand, eight hundred forty-one".