19200377208 has 128 divisors (see below), whose sum is σ = 50077440000. Its totient is φ = 6130467840.

The previous prime is 19200377197. The next prime is 19200377213. The reversal of 19200377208 is 80277300291.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11932308 + ... + 11933916.

It is an arithmetic number, because the mean of its divisors is an integer number (391230000).

Almost surely, 2^19200377208 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19200377208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25038720000).

19200377208 is an abundant number, since it is smaller than the sum of its proper divisors (30877062792).

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

19200377208 is a wasteful number, since it uses less digits than its factorization.

19200377208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1885 (or 1881 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 39.

Adding to 19200377208 its reverse (80277300291), we get a palindrome (99477677499).

The spelling of 19200377208 in words is "nineteen billion, two hundred million, three hundred seventy-seven thousand, two hundred eight".