86789061021 has 16 divisors (see below), whose sum is σ = 126020422080. Its totient is φ = 52808553600.

The previous prime is 86789061017. The next prime is 86789061041. The reversal of 86789061021 is 12016098768.

It is not a de Polignac number, because 86789061021 - 2² = 86789061017 is a prime.

It is a super-2 number, since 2×86789061021² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86789061041) 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, 12498555 + ... + 12505496.

It is an arithmetic number, because the mean of its divisors is an integer number (7876276380).

Almost surely, 2^86789061021 is an apocalyptic number.

It is an amenable number.

86789061021 is a deficient number, since it is larger than the sum of its proper divisors (39231361059).

86789061021 is a wasteful number, since it uses less digits than its factorization.

86789061021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25004156.

The product of its (nonzero) digits is 290304, while the sum is 48.

The spelling of 86789061021 in words is "eighty-six billion, seven hundred eighty-nine million, sixty-one thousand, twenty-one".