83217746287 has 16 divisors (see below), whose sum is σ = 89901342720. Its totient is φ = 76574757600.

The previous prime is 83217746233. The next prime is 83217746303. The reversal of 83217746287 is 78264771238.

It is a cyclic number.

It is not a de Polignac number, because 83217746287 - 2⁷ = 83217746159 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 (83217746587) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8225362 + ... + 8235472.

It is an arithmetic number, because the mean of its divisors is an integer number (5618833920).

Almost surely, 2^83217746287 is an apocalyptic number.

83217746287 is a deficient number, since it is larger than the sum of its proper divisors (6683596433).

83217746287 is a wasteful number, since it uses less digits than its factorization.

83217746287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12054.

The product of its digits is 6322176, while the sum is 55.

The spelling of 83217746287 in words is "eighty-three billion, two hundred seventeen million, seven hundred forty-six thousand, two hundred eighty-seven".