83684887853 has 8 divisors (see below), whose sum is σ = 95794884672. Its totient is φ = 71613644256.

The previous prime is 83684887831. The next prime is 83684887861. The reversal of 83684887853 is 35878848638.

It is a happy number.

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

It is not a de Polignac number, because 83684887853 - 2¹⁴ = 83684871469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83684887813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9683675 + ... + 9692312.

It is an arithmetic number, because the mean of its divisors is an integer number (11974360584).

Almost surely, 2^83684887853 is an apocalyptic number.

It is an amenable number.

83684887853 is a deficient number, since it is larger than the sum of its proper divisors (12109996819).

83684887853 is a wasteful number, since it uses less digits than its factorization.

83684887853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19376611.

The product of its digits is 247726080, while the sum is 68.

The spelling of 83684887853 in words is "eighty-three billion, six hundred eighty-four million, eight hundred eighty-seven thousand, eight hundred fifty-three".