285328377109 has 8 divisors (see below), whose sum is σ = 285840394560. Its totient is φ = 284816449056.

The previous prime is 285328377091. The next prime is 285328377143. The reversal of 285328377109 is 901773823582.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 285328377109 - 2¹⁵ = 285328344341 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 285328377109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285328377149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12569832 + ... + 12592510.

It is an arithmetic number, because the mean of its divisors is an integer number (35730049320).

Almost surely, 2^285328377109 is an apocalyptic number.

It is an amenable number.

285328377109 is a deficient number, since it is larger than the sum of its proper divisors (512017451).

285328377109 is a wasteful number, since it uses less digits than its factorization.

285328377109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44699.

The product of its (nonzero) digits is 5080320, while the sum is 55.

It can be divided in two parts, 2853283 and 77109, that added together give a palindrome (2930392).

The spelling of 285328377109 in words is "two hundred eighty-five billion, three hundred twenty-eight million, three hundred seventy-seven thousand, one hundred nine".