84985828269081 has 32 divisors (see below), whose sum is σ = 114492076631808. Its totient is φ = 56071125089280.

The previous prime is 84985828268857. The next prime is 84985828269103. The reversal of 84985828269081 is 18096282858948.

It is not a de Polignac number, because 84985828269081 - 2¹⁴ = 84985828252697 is a prime.

It is a super-2 number, since 2×84985828269081² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 84985828268988 and 84985828269006.

It is not an unprimeable number, because it can be changed into a prime (84985828262081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 250206141 + ... + 250545573.

It is an arithmetic number, because the mean of its divisors is an integer number (3577877394744).

Almost surely, 2^{84985828269081} is an apocalyptic number.

It is an amenable number.

84985828269081 is a deficient number, since it is larger than the sum of its proper divisors (29506248362727).

84985828269081 is a wasteful number, since it uses less digits than its factorization.

84985828269081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341441.

The product of its (nonzero) digits is 1274019840, while the sum is 78.

The spelling of 84985828269081 in words is "eighty-four trillion, nine hundred eighty-five billion, eight hundred twenty-eight million, two hundred sixty-nine thousand, eighty-one".