8154429838 has 4 divisors (see below), whose sum is σ = 12231644760. Its totient is φ = 4077214918.

The previous prime is 8154429827. The next prime is 8154429859. The reversal of 8154429838 is 8389244518.

It is a semiprime because it is the product of two primes.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 2038607458 + ... + 2038607461.

It is an arithmetic number, because the mean of its divisors is an integer number (3057911190).

Almost surely, 2^8154429838 is an apocalyptic number.

8154429838 is a deficient number, since it is larger than the sum of its proper divisors (4077214922).

8154429838 is a wasteful number, since it uses less digits than its factorization.

8154429838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4077214921.

The product of its digits is 2211840, while the sum is 52.

The square root of 8154429838 is about 90301.8816968949. The cubic root of 8154429838 is about 2012.7872223985.

The spelling of 8154429838 in words is "eight billion, one hundred fifty-four million, four hundred twenty-nine thousand, eight hundred thirty-eight".