21411196907800 has 96 divisors (see below), whose sum is σ = 58053682764000. Its totient is φ = 7340981773440.

The previous prime is 21411196907791. The next prime is 21411196907803. The reversal of 21411196907800 is 870969111412.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21411196907803) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 155989687 + ... + 156126886.

It is an arithmetic number, because the mean of its divisors is an integer number (604725862125).

Almost surely, 2^{21411196907800} is an apocalyptic number.

21411196907800 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21411196907800 is an abundant number, since it is smaller than the sum of its proper divisors (36642485856200).

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

21411196907800 is a wasteful number, since it uses less digits than its factorization.

21411196907800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312116610 (or 312116587 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 49.

The spelling of 21411196907800 in words is "twenty-one trillion, four hundred eleven billion, one hundred ninety-six million, nine hundred seven thousand, eight hundred".