854156478 has 16 divisors (see below), whose sum is σ = 1952357760. Its totient is φ = 244044696.

The previous prime is 854156477. The next prime is 854156509. The reversal of 854156478 is 874651458.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (854156473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10168488 + ... + 10168571.

It is an arithmetic number, because the mean of its divisors is an integer number (122022360).

Almost surely, 2^854156478 is an apocalyptic number.

854156478 is an abundant number, since it is smaller than the sum of its proper divisors (1098201282).

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

854156478 is a wasteful number, since it uses less digits than its factorization.

854156478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20337071.

The product of its digits is 1075200, while the sum is 48.

The square root of 854156478 is about 29225.9555532407. The cubic root of 854156478 is about 948.8097662847.

The spelling of 854156478 in words is "eight hundred fifty-four million, one hundred fifty-six thousand, four hundred seventy-eight".