8534378042 has 32 divisors (see below), whose sum is σ = 13932792720. Its totient is φ = 3910878720.

The previous prime is 8534378023. The next prime is 8534378051. The reversal of 8534378042 is 2408734358.

It can be written as a sum of positive squares in 8 ways, for example, as 1789205401 + 6745172641 = 42299^2 + 82129^2 .

It is a junction number, because it is equal to n+sod(n) for n = 8534377984 and 8534378002.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 39488 + ... + 136484.

Almost surely, 2^8534378042 is an apocalyptic number.

8534378042 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

8534378042 is a deficient number, since it is larger than the sum of its proper divisors (5398414678).

8534378042 is a wasteful number, since it uses less digits than its factorization.

8534378042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97106.

The product of its (nonzero) digits is 645120, while the sum is 44.

The square root of 8534378042 is about 92381.6975488110. The cubic root of 8534378042 is about 2043.5752090325.

The spelling of 8534378042 in words is "eight billion, five hundred thirty-four million, three hundred seventy-eight thousand, forty-two".