1642200472000 has 112 divisors (see below), whose sum is σ = 4436628749280. Its totient is φ = 597163776000.

The previous prime is 1642200471997. The next prime is 1642200472001. The reversal of 1642200472000 is 2740022461.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1642200472000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1642200472001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9242685 + ... + 9418684.

It is an arithmetic number, because the mean of its divisors is an integer number (39612756690).

Almost surely, 2^{1642200472000} is an apocalyptic number.

1642200472000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1642200472000 is an abundant number, since it is smaller than the sum of its proper divisors (2794428277280).

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

1642200472000 is a wasteful number, since it uses less digits than its factorization.

1642200472000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18661407 (or 18661387 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 28.

Adding to 1642200472000 its reverse (2740022461), we get a palindrome (1644940494461).

The spelling of 1642200472000 in words is "one trillion, six hundred forty-two billion, two hundred million, four hundred seventy-two thousand".