1622408911872 has 88 divisors (see below), whose sum is σ = 4942070069376. Its totient is φ = 463545397248.

The previous prime is 1622408911843. The next prime is 1622408911909. The reversal of 1622408911872 is 2781198042261.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37701918 + ... + 37744925.

It is an arithmetic number, because the mean of its divisors is an integer number (56159887152).

Almost surely, 2^{1622408911872} is an apocalyptic number.

1622408911872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1622408911872 is an abundant number, since it is smaller than the sum of its proper divisors (3319661157504).

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

1622408911872 is an equidigital number, since it uses as much as digits as its factorization.

1622408911872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75446873 (or 75446855 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 51.

The spelling of 1622408911872 in words is "one trillion, six hundred twenty-two billion, four hundred eight million, nine hundred eleven thousand, eight hundred seventy-two".