83216861238 has 64 divisors (see below), whose sum is σ = 202633482240. Its totient is φ = 22253463072.

The previous prime is 83216861237. The next prime is 83216861251.

83216861238 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 (83216861237) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 561970 + ... + 694437.

It is an arithmetic number, because the mean of its divisors is an integer number (3166148160).

Almost surely, 2^83216861238 is an apocalyptic number.

83216861238 is an abundant number, since it is smaller than the sum of its proper divisors (119416621002).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

83216861238 is a wasteful number, since it uses less digits than its factorization.

83216861238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1256521.

The product of its digits is 663552, while the sum is 48.

The spelling of 83216861238 in words is "eighty-three billion, two hundred sixteen million, eight hundred sixty-one thousand, two hundred thirty-eight".