83866283487 has 24 divisors (see below), whose sum is σ = 139375111200. Its totient is φ = 47601950400.

The previous prime is 83866283483. The next prime is 83866283491. The reversal of 83866283487 is 78438266838.

It is an interprime number because it is at equal distance from previous prime (83866283483) and next prime (83866283491).

It is not a de Polignac number, because 83866283487 - 2² = 83866283483 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83866283483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4457764 + ... + 4476537.

It is an arithmetic number, because the mean of its divisors is an integer number (5807296300).

Almost surely, 2^83866283487 is an apocalyptic number.

83866283487 is a deficient number, since it is larger than the sum of its proper divisors (55508827713).

83866283487 is a wasteful number, since it uses less digits than its factorization.

83866283487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8934463 (or 8934460 counting only the distinct ones).

The product of its digits is 74317824, while the sum is 63.

The spelling of 83866283487 in words is "eighty-three billion, eight hundred sixty-six million, two hundred eighty-three thousand, four hundred eighty-seven".