86669280081 has 12 divisors (see below), whose sum is σ = 125224866000. Its totient is φ = 57762948120.

The previous prime is 86669280023. The next prime is 86669280151. The reversal of 86669280081 is 18008296668.

It is a happy number.

It is not a de Polignac number, because 86669280081 - 2²¹ = 86667182929 is a prime.

It is a super-2 number, since 2×86669280081² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (86669281081) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1347831 + ... + 1410668.

It is an arithmetic number, because the mean of its divisors is an integer number (10435405500).

Almost surely, 2^86669280081 is an apocalyptic number.

It is an amenable number.

86669280081 is a deficient number, since it is larger than the sum of its proper divisors (38555585919).

86669280081 is a wasteful number, since it uses less digits than its factorization.

86669280081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2761996 (or 2761993 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 54.

The spelling of 86669280081 in words is "eighty-six billion, six hundred sixty-nine million, two hundred eighty thousand, eighty-one".