86178733261 has 8 divisors (see below), whose sum is σ = 88524391424. Its totient is φ = 83833943760.

The previous prime is 86178733217. The next prime is 86178733297. The reversal of 86178733261 is 16233787168.

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 86178733261 - 2¹¹ = 86178731213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 86178733199 and 86178733208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86178733661) 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, 13485 + ... + 415378.

It is an arithmetic number, because the mean of its divisors is an integer number (11065548928).

Almost surely, 2^86178733261 is an apocalyptic number.

It is an amenable number.

86178733261 is a deficient number, since it is larger than the sum of its proper divisors (2345658163).

86178733261 is a wasteful number, since it uses less digits than its factorization.

86178733261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434331.

The product of its digits is 2032128, while the sum is 52.

The spelling of 86178733261 in words is "eighty-six billion, one hundred seventy-eight million, seven hundred thirty-three thousand, two hundred sixty-one".