854478677918 has 32 divisors (see below), whose sum is σ = 1362990888000. Its totient is φ = 400861517056.

The previous prime is 854478677911. The next prime is 854478677929. The reversal of 854478677918 is 819776874458.

It is a super-2 number, since 2×854478677918² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (854478677911) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11296568 + ... + 11371956.

It is an arithmetic number, because the mean of its divisors is an integer number (42593465250).

Almost surely, 2^854478677918 is an apocalyptic number.

854478677918 is a deficient number, since it is larger than the sum of its proper divisors (508512210082).

854478677918 is a wasteful number, since it uses less digits than its factorization.

854478677918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80116.

The product of its digits is 758661120, while the sum is 74.

The spelling of 854478677918 in words is "eight hundred fifty-four billion, four hundred seventy-eight million, six hundred seventy-seven thousand, nine hundred eighteen".