83571951417671 has 4 divisors (see below), whose sum is σ = 83996174521512. Its totient is φ = 83147728313832.

The previous prime is 83571951417659. The next prime is 83571951417677. The reversal of 83571951417671 is 17671415917538.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 83571951417671 - 2²⁶ = 83571884308807 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 83571951417598 and 83571951417607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83571951417677) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212111551625 + ... + 212111552018.

It is an arithmetic number, because the mean of its divisors is an integer number (20999043630378).

Almost surely, 2^{83571951417671} is an apocalyptic number.

83571951417671 is a deficient number, since it is larger than the sum of its proper divisors (424223103841).

83571951417671 is a wasteful number, since it uses less digits than its factorization.

83571951417671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424223103840.

The product of its digits is 44452800, while the sum is 65.

The spelling of 83571951417671 in words is "eighty-three trillion, five hundred seventy-one billion, nine hundred fifty-one million, four hundred seventeen thousand, six hundred seventy-one".