2321553678 has 16 divisors (see below), whose sum is σ = 4768597200. Its totient is φ = 752936256.

The previous prime is 2321553667. The next prime is 2321553679. The reversal of 2321553678 is 8763551232.

It is a happy number.

It is a super-2 number, since 2×2321553678² = 10779222959670655368, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2321553679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5228503 + ... + 5228946.

It is an arithmetic number, because the mean of its divisors is an integer number (298037325).

Almost surely, 2^2321553678 is an apocalyptic number.

2321553678 is an abundant number, since it is smaller than the sum of its proper divisors (2447043522).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2321553678 is a wasteful number, since it uses less digits than its factorization.

2321553678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10457491.

The product of its digits is 302400, while the sum is 42.

The square root of 2321553678 is about 48182.5038577283. The cubic root of 2321553678 is about 1324.1166397334.

The spelling of 2321553678 in words is "two billion, three hundred twenty-one million, five hundred fifty-three thousand, six hundred seventy-eight".