8400040080880 has 80 divisors (see below), whose sum is σ = 22795002455040. Its totient is φ = 2818736845056.

The previous prime is 8400040080871. The next prime is 8400040080923. The reversal of 8400040080880 is 880800400048.

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

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 159548910 + ... + 159601549.

It is an arithmetic number, because the mean of its divisors is an integer number (284937530688).

Almost surely, 2^{8400040080880} is an apocalyptic number.

8400040080880 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8400040080880 is an abundant number, since it is smaller than the sum of its proper divisors (14394962374160).

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

8400040080880 is a wasteful number, since it uses less digits than its factorization.

8400040080880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319150526 (or 319150520 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 40.

The spelling of 8400040080880 in words is "eight trillion, four hundred billion, forty million, eighty thousand, eight hundred eighty".