42834844154 has 4 divisors (see below), whose sum is σ = 64252266234. Its totient is φ = 21417422076.

The previous prime is 42834844123. The next prime is 42834844159. The reversal of 42834844154 is 45144843824.

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

It can be written as a sum of positive squares in only one way, i.e., 42834511225 + 332929 = 206965^2 + 577^2 .

It is a junction number, because it is equal to n+sod(n) for n = 42834844099 and 42834844108.

It is not an unprimeable number, because it can be changed into a prime (42834844159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10708711037 + ... + 10708711040.

Almost surely, 2^42834844154 is an apocalyptic number.

42834844154 is a deficient number, since it is larger than the sum of its proper divisors (21417422080).

42834844154 is a wasteful number, since it uses less digits than its factorization.

42834844154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21417422079.

The product of its digits is 1966080, while the sum is 47.

The spelling of 42834844154 in words is "forty-two billion, eight hundred thirty-four million, eight hundred forty-four thousand, one hundred fifty-four".