9919053144 has 288 divisors, whose sum is σ = 36715245840. Its totient is φ = 2378073600.

The previous prime is 9919053107. The next prime is 9919053173. The reversal of 9919053144 is 4413509199.

It is a self number, because there is not a number n which added to its sum of digits gives 9919053144.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 494674 + ... + 514334.

Almost surely, 2^9919053144 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 9919053144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18357622920).

9919053144 is an abundant number, since it is smaller than the sum of its proper divisors (26796192696).

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

9919053144 is a wasteful number, since it uses less digits than its factorization.

9919053144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19711 (or 19697 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 45.

The square root of 9919053144 is about 99594.4433389735. The cubic root of 9919053144 is about 2148.6057767314.

The spelling of 9919053144 in words is "nine billion, nine hundred nineteen million, fifty-three thousand, one hundred forty-four".