83865209248261 has 8 divisors (see below), whose sum is σ = 95920310266560. Its totient is φ = 71828697439968.

The previous prime is 83865209248243. The next prime is 83865209248277. The reversal of 83865209248261 is 16284290256838.

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

It is not a de Polignac number, because 83865209248261 - 2¹⁵ = 83865209215493 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 83865209248193 and 83865209248202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83865209248361) 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, 4647292831 + ... + 4647310876.

It is an arithmetic number, because the mean of its divisors is an integer number (11990038783320).

Almost surely, 2^{83865209248261} is an apocalyptic number.

It is an amenable number.

83865209248261 is a deficient number, since it is larger than the sum of its proper divisors (12055101018299).

83865209248261 is a wasteful number, since it uses less digits than its factorization.

83865209248261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9294605003.

The product of its (nonzero) digits is 79626240, while the sum is 64.

The spelling of 83865209248261 in words is "eighty-three trillion, eight hundred sixty-five billion, two hundred nine million, two hundred forty-eight thousand, two hundred sixty-one".