86021020069 has 16 divisors (see below), whose sum is σ = 88398604800. Its totient is φ = 83675927664.

The previous prime is 86021020067. The next prime is 86021020093. The reversal of 86021020069 is 96002012068.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 86021020069 - 2¹ = 86021020067 is a prime.

It is a super-2 number, since 2×86021020069² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86021020061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5794234 + ... + 5809060.

It is an arithmetic number, because the mean of its divisors is an integer number (5524912800).

Almost surely, 2^86021020069 is an apocalyptic number.

It is an amenable number.

86021020069 is a deficient number, since it is larger than the sum of its proper divisors (2377584731).

86021020069 is a wasteful number, since it uses less digits than its factorization.

86021020069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15912.

The product of its (nonzero) digits is 10368, while the sum is 34.

The spelling of 86021020069 in words is "eighty-six billion, twenty-one million, twenty thousand, sixty-nine".