840080084880 has 80 divisors (see below), whose sum is σ = 2664812208960. Its totient is φ = 218811554304.

The previous prime is 840080084869. The next prime is 840080084897. The reversal of 840080084880 is 88480080048.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×840080084880² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 40691235 + ... + 40711874.

It is an arithmetic number, because the mean of its divisors is an integer number (33310152612).

Almost surely, 2^840080084880 is an apocalyptic number.

840080084880 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

840080084880 is an abundant number, since it is smaller than the sum of its proper divisors (1824732124080).

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

840080084880 is a wasteful number, since it uses less digits than its factorization.

840080084880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81403168 (or 81403162 counting only the distinct ones).

The product of its (nonzero) digits is 524288, while the sum is 48.

The spelling of 840080084880 in words is "eight hundred forty billion, eighty million, eighty-four thousand, eight hundred eighty".