385042879899 has 24 divisors (see below), whose sum is σ = 566009560272. Its totient is φ = 252166029120.

The previous prime is 385042879849. The next prime is 385042879987. The reversal of 385042879899 is 998978240583.

385042879899 is a `hidden beast` number, since 3 + 8 + 50 + 428 + 79 + 89 + 9 = 666.

It is not a de Polignac number, because 385042879899 - 2²¹ = 385040782747 is a prime.

It is not an unprimeable number, because it can be changed into a prime (385042879849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13524 + ... + 877649.

It is an arithmetic number, because the mean of its divisors is an integer number (23583731678).

Almost surely, 2^385042879899 is an apocalyptic number.

385042879899 is a deficient number, since it is larger than the sum of its proper divisors (180966680373).

385042879899 is a wasteful number, since it uses less digits than its factorization.

385042879899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 892027 (or 892024 counting only the distinct ones).

The product of its (nonzero) digits is 313528320, while the sum is 72.

The spelling of 385042879899 in words is "three hundred eighty-five billion, forty-two million, eight hundred seventy-nine thousand, eight hundred ninety-nine".