42838696858 has 8 divisors (see below), whose sum is σ = 64584228852. Its totient is φ = 21310620576.

The previous prime is 42838696853. The next prime is 42838696949. The reversal of 42838696858 is 85869683824.

It can be written as a sum of positive squares in 2 ways, for example, as 42719515969 + 119180889 = 206687^2 + 10917^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 42838696793 and 42838696802.

It is not an unprimeable number, because it can be changed into a prime (42838696853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54363435 + ... + 54364222.

Almost surely, 2^42838696858 is an apocalyptic number.

42838696858 is a deficient number, since it is larger than the sum of its proper divisors (21745531994).

42838696858 is a wasteful number, since it uses less digits than its factorization.

42838696858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108727856.

The product of its digits is 159252480, while the sum is 67.

The spelling of 42838696858 in words is "forty-two billion, eight hundred thirty-eight million, six hundred ninety-six thousand, eight hundred fifty-eight".