409866463680 has 112 divisors (see below), whose sum is σ = 1301519469600. Its totient is φ = 109281476608.

The previous prime is 409866463639. The next prime is 409866463681. The reversal of 409866463680 is 86364668904.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (409866463681) 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 15 ways as a sum of consecutive naturals, for example, 7315132 + ... + 7370948.

It is an arithmetic number, because the mean of its divisors is an integer number (11620709550).

Almost surely, 2^409866463680 is an apocalyptic number.

409866463680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

409866463680 is an abundant number, since it is smaller than the sum of its proper divisors (891653005920).

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

409866463680 is a wasteful number, since it uses less digits than its factorization.

409866463680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63486 (or 63476 counting only the distinct ones).

The product of its (nonzero) digits is 35831808, while the sum is 60.

The spelling of 409866463680 in words is "four hundred nine billion, eight hundred sixty-six million, four hundred sixty-three thousand, six hundred eighty".