2091814445400 has 96 divisors (see below), whose sum is σ = 6708232587600. Its totient is φ = 538582105600.

The previous prime is 2091814445389. The next prime is 2091814445407. The reversal of 2091814445400 is 45444181902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2091814445407) 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, 60092211 + ... + 60127010.

Almost surely, 2^{2091814445400} is an apocalyptic number.

2091814445400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2091814445400 is an abundant number, since it is smaller than the sum of its proper divisors (4616418142200).

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

2091814445400 is a wasteful number, since it uses less digits than its factorization.

2091814445400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120219269 (or 120219260 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 42.

The spelling of 2091814445400 in words is "two trillion, ninety-one billion, eight hundred fourteen million, four hundred forty-five thousand, four hundred".