19148091248 has 120 divisors (see below), whose sum is σ = 44020182528. Its totient is φ = 8015040000.

The previous prime is 19148091233. The next prime is 19148091289. The reversal of 19148091248 is 84219084191.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16635473 + ... + 16636623.

Almost surely, 2^19148091248 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 19148091248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22010091264).

19148091248 is an abundant number, since it is smaller than the sum of its proper divisors (24872091280).

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

19148091248 is a wasteful number, since it uses less digits than its factorization.

19148091248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1855 (or 1838 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 47.

The spelling of 19148091248 in words is "nineteen billion, one hundred forty-eight million, ninety-one thousand, two hundred forty-eight".