84840040408 has 16 divisors (see below), whose sum is σ = 159116312880. Its totient is φ = 42409023648.

The previous prime is 84840040403. The next prime is 84840040429. The reversal of 84840040408 is 80404004848.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84840040403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1341735 + ... + 1403542.

It is an arithmetic number, because the mean of its divisors is an integer number (9944769555).

Almost surely, 2^84840040408 is an apocalyptic number.

It is an amenable number.

84840040408 is a deficient number, since it is larger than the sum of its proper divisors (74276272472).

84840040408 is a wasteful number, since it uses less digits than its factorization.

84840040408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2749146 (or 2749142 counting only the distinct ones).

The product of its (nonzero) digits is 131072, while the sum is 40.

The spelling of 84840040408 in words is "eighty-four billion, eight hundred forty million, forty thousand, four hundred eight".