838383838383838 has 32 divisors (see below), whose sum is σ = 1296701959512960. Its totient is φ = 406309240622880.

The previous prime is 838383838383781. The next prime is 838383838383869.

838383838383838 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×838383838383838² (a number of 31 digits) contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

838383838383838 is an undulating number in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50396568 + ... + 64935211.

It is an arithmetic number, because the mean of its divisors is an integer number (40521936234780).

Almost surely, 2^{838383838383838} is an apocalyptic number.

838383838383838 is a deficient number, since it is larger than the sum of its proper divisors (458318121129122).

838383838383838 is a wasteful number, since it uses less digits than its factorization.

838383838383838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115332472.

The product of its digits is 36691771392, while the sum is 85.

The spelling of 838383838383838 in words is "eight hundred thirty-eight trillion, three hundred eighty-three billion, eight hundred thirty-eight million, three hundred eighty-three thousand, eight hundred thirty-eight".