1899216903980 has 96 divisors (see below), whose sum is σ = 4592412840960. Its totient is φ = 652492385280.

The previous prime is 1899216903929. The next prime is 1899216904019. The reversal of 1899216903980 is 893096129981.

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, 915044 + ... + 2153076.

It is an arithmetic number, because the mean of its divisors is an integer number (47837633760).

Almost surely, 2^{1899216903980} is an apocalyptic number.

1899216903980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1899216903980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2296206420480).

1899216903980 is an abundant number, since it is smaller than the sum of its proper divisors (2693195936980).

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

1899216903980 is a wasteful number, since it uses less digits than its factorization.

1899216903980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1238439 (or 1238437 counting only the distinct ones).

The product of its (nonzero) digits is 15116544, while the sum is 65.

The spelling of 1899216903980 in words is "one trillion, eight hundred ninety-nine billion, two hundred sixteen million, nine hundred three thousand, nine hundred eighty".