83171512865 has 8 divisors (see below), whose sum is σ = 114063789120. Its totient is φ = 57031894512.

The previous prime is 83171512841. The next prime is 83171512873. The reversal of 83171512865 is 56821517138.

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

It is a cyclic number.

It is not a de Polignac number, because 83171512865 - 2¹⁴ = 83171496481 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1188164435 + ... + 1188164504.

It is an arithmetic number, because the mean of its divisors is an integer number (14257973640).

Almost surely, 2^83171512865 is an apocalyptic number.

It is an amenable number.

83171512865 is a deficient number, since it is larger than the sum of its proper divisors (30892276255).

83171512865 is a wasteful number, since it uses less digits than its factorization.

83171512865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2376328951.

The product of its digits is 403200, while the sum is 47.

The spelling of 83171512865 in words is "eighty-three billion, one hundred seventy-one million, five hundred twelve thousand, eight hundred sixty-five".