84886651889 has 6 divisors (see below), whose sum is σ = 91918682406. Its totient is φ = 78356909280.

The previous prime is 84886651867. The next prime is 84886651903. The reversal of 84886651889 is 98815668848.

It can be written as a sum of positive squares in 3 ways, for example, as 7656289 + 84878995600 = 2767^2 + 291340^2 .

It is not a de Polignac number, because 84886651889 - 2¹² = 84886647793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84886651189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 251143772 + ... + 251144109.

It is an arithmetic number, because the mean of its divisors is an integer number (15319780401).

Almost surely, 2^84886651889 is an apocalyptic number.

It is an amenable number.

84886651889 is a deficient number, since it is larger than the sum of its proper divisors (7032030517).

84886651889 is a wasteful number, since it uses less digits than its factorization.

84886651889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502287907 (or 502287894 counting only the distinct ones).

The product of its digits is 212336640, while the sum is 71.

The spelling of 84886651889 in words is "eighty-four billion, eight hundred eighty-six million, six hundred fifty-one thousand, eight hundred eighty-nine".