86387449122 has 90 divisors (see below), whose sum is σ = 205493221557. Its totient is φ = 26216633664.

The previous prime is 86387449121. The next prime is 86387449139. The reversal of 86387449122 is 22194478368.

86387449122 is a `hidden beast` number, since 8 + 63 + 8 + 74 + 491 + 22 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 5492143881 + 80895305241 = 74109^2 + 284421^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=207831.

It is a super-2 number, since 2×86387449122² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (86387449121) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 1183389678 + ... + 1183389750.

Almost surely, 2^86387449122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 86387449122

86387449122 is an abundant number, since it is smaller than the sum of its proper divisors (119105772435).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

86387449122 is an frugal number, since it uses more digits than its factorization.

86387449122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326 (or 91 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 54.

The spelling of 86387449122 in words is "eighty-six billion, three hundred eighty-seven million, four hundred forty-nine thousand, one hundred twenty-two".