384899537321 has 8 divisors (see below), whose sum is σ = 414544449480. Its totient is φ = 355259947392.

The previous prime is 384899537287. The next prime is 384899537327. The reversal of 384899537321 is 123735998483.

It can be written as a sum of positive squares in 4 ways, for example, as 32614554025 + 352284983296 = 180595^2 + 593536^2 .

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 384899537321 - 2⁶ = 384899537257 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (384899537327) 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, 1179716 + ... + 1470213.

It is an arithmetic number, because the mean of its divisors is an integer number (51818056185).

Almost surely, 2^384899537321 is an apocalyptic number.

It is an amenable number.

384899537321 is a deficient number, since it is larger than the sum of its proper divisors (29644912159).

384899537321 is a wasteful number, since it uses less digits than its factorization.

384899537321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2661115.

The product of its digits is 39191040, while the sum is 62.

The spelling of 384899537321 in words is "three hundred eighty-four billion, eight hundred ninety-nine million, five hundred thirty-seven thousand, three hundred twenty-one".