83863436838 has 32 divisors (see below), whose sum is σ = 172386486240. Its totient is φ = 27198853920.

The previous prime is 83863436807. The next prime is 83863436851.

83863436838 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 165948 + ... + 441888.

It is an arithmetic number, because the mean of its divisors is an integer number (5387077695).

Almost surely, 2^83863436838 is an apocalyptic number.

83863436838 is an abundant number, since it is smaller than the sum of its proper divisors (88523049402).

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

83863436838 is an equidigital number, since it uses as much as digits as its factorization.

83863436838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276057 (or 275983 counting only the distinct ones).

The product of its digits is 47775744, while the sum is 60.

The spelling of 83863436838 in words is "eighty-three billion, eight hundred sixty-three million, four hundred thirty-six thousand, eight hundred thirty-eight".