385874432081 has 4 divisors (see below), whose sum is σ = 385876814832. Its totient is φ = 385872049332.

The previous prime is 385874432063. The next prime is 385874432093. The reversal of 385874432081 is 180234478583.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 385874432081 - 2¹⁰ = 385874431057 is a prime.

It is a super-2 number, since 2×385874432081² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (385874434081) 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 3 ways as a sum of consecutive naturals, for example, 929231 + ... + 1278756.

It is an arithmetic number, because the mean of its divisors is an integer number (96469203708).

Almost surely, 2^385874432081 is an apocalyptic number.

It is an amenable number.

385874432081 is a deficient number, since it is larger than the sum of its proper divisors (2382751).

385874432081 is a wasteful number, since it uses less digits than its factorization.

385874432081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2382750.

The product of its (nonzero) digits is 5160960, while the sum is 53.

The spelling of 385874432081 in words is "three hundred eighty-five billion, eight hundred seventy-four million, four hundred thirty-two thousand, eighty-one".