853923930778 has 16 divisors (see below), whose sum is σ = 1285332362496. Its totient is φ = 425479980240.

The previous prime is 853923930757. The next prime is 853923930829. The reversal of 853923930778 is 877039329358.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 13981375 + ... + 14042317.

It is an arithmetic number, because the mean of its divisors is an integer number (80333272656).

Almost surely, 2^853923930778 is an apocalyptic number.

853923930778 is a deficient number, since it is larger than the sum of its proper divisors (431408431718).

853923930778 is a wasteful number, since it uses less digits than its factorization.

853923930778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85149.

The product of its (nonzero) digits is 68584320, while the sum is 64.

The spelling of 853923930778 in words is "eight hundred fifty-three billion, nine hundred twenty-three million, nine hundred thirty thousand, seven hundred seventy-eight".