84061885540 has 48 divisors (see below), whose sum is σ = 177012037440. Its totient is φ = 33533066880.

The previous prime is 84061885529. The next prime is 84061885541. The reversal of 84061885540 is 4558816048.

It is a super-2 number, since 2×84061885540² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (84061885541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11983074 + ... + 11990086.

It is an arithmetic number, because the mean of its divisors is an integer number (3687750780).

Almost surely, 2^84061885540 is an apocalyptic number.

It is an amenable number.

84061885540 is an abundant number, since it is smaller than the sum of its proper divisors (92950151900).

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

84061885540 is a wasteful number, since it uses less digits than its factorization.

84061885540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8572 (or 8570 counting only the distinct ones).

The product of its (nonzero) digits is 1228800, while the sum is 49.

The spelling of 84061885540 in words is "eighty-four billion, sixty-one million, eight hundred eighty-five thousand, five hundred forty".