385196017879 has 4 divisors (see below), whose sum is σ = 407854607184. Its totient is φ = 362537428576.

The previous prime is 385196017813. The next prime is 385196017891. The reversal of 385196017879 is 978710691583.

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

It is a cyclic number.

It is not a de Polignac number, because 385196017879 - 2¹³ = 385196009687 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 385196017879.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385196017379) 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, 11329294627 + ... + 11329294660.

It is an arithmetic number, because the mean of its divisors is an integer number (101963651796).

Almost surely, 2^385196017879 is an apocalyptic number.

385196017879 is a deficient number, since it is larger than the sum of its proper divisors (22658589305).

385196017879 is a wasteful number, since it uses less digits than its factorization.

385196017879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22658589304.

The product of its (nonzero) digits is 22861440, while the sum is 64.

The spelling of 385196017879 in words is "three hundred eighty-five billion, one hundred ninety-six million, seventeen thousand, eight hundred seventy-nine".