19382019201900 has 54 divisors (see below), whose sum is σ = 60751862412332. Its totient is φ = 5168538453600.

The previous prime is 19382019201749. The next prime is 19382019201901. The reversal of 19382019201900 is 910291028391.

It is a super-2 number, since 2×19382019201900² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (19382019201901) 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 17 ways as a sum of consecutive naturals, for example, 10767787546 + ... + 10767789345.

Almost surely, 2^{19382019201900} is an apocalyptic number.

19382019201900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19382019201900 is an abundant number, since it is smaller than the sum of its proper divisors (41369843210432).

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

19382019201900 is a wasteful number, since it uses less digits than its factorization.

19382019201900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21535576911 (or 21535576901 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 45.

The spelling of 19382019201900 in words is "nineteen trillion, three hundred eighty-two billion, nineteen million, two hundred one thousand, nine hundred".