83827072838 has 12 divisors (see below), whose sum is σ = 132706849140. Its totient is φ = 39707560476.

The previous prime is 83827072837. The next prime is 83827072859.

83827072838 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83827072837) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 58051268 + ... + 58052711.

It is an arithmetic number, because the mean of its divisors is an integer number (11058904095).

Almost surely, 2^83827072838 is an apocalyptic number.

83827072838 is a deficient number, since it is larger than the sum of its proper divisors (48879776302).

83827072838 is a wasteful number, since it uses less digits than its factorization.

83827072838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116104019 (or 116104000 counting only the distinct ones).

The product of its (nonzero) digits is 7225344, while the sum is 56.

The spelling of 83827072838 in words is "eighty-three billion, eight hundred twenty-seven million, seventy-two thousand, eight hundred thirty-eight".