19853373120 has 336 divisors, whose sum is σ = 73552872960. Its totient is φ = 4523882496.

The previous prime is 19853373107. The next prime is 19853373149. The reversal of 19853373120 is 2137335891.

It is a tau number, because it is divible by the number of its divisors (336).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 27612121 + ... + 27612839.

It is an arithmetic number, because the mean of its divisors is an integer number (218907360).

Almost surely, 2^19853373120 is an apocalyptic number.

19853373120 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 19853373120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36776436480).

19853373120 is an abundant number, since it is smaller than the sum of its proper divisors (53699499840).

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

19853373120 is a wasteful number, since it uses less digits than its factorization.

19853373120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1340 (or 1323 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 42.

The spelling of 19853373120 in words is "nineteen billion, eight hundred fifty-three million, three hundred seventy-three thousand, one hundred twenty".