19411249264 has 160 divisors (see below), whose sum is σ = 45087114240. Its totient is φ = 7995187200.

The previous prime is 19411249237. The next prime is 19411249301. The reversal of 19411249264 is 46294211491.

It is a self number, because there is not a number n which added to its sum of digits gives 19411249264.

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, 9690087 + ... + 9692089.

It is an arithmetic number, because the mean of its divisors is an integer number (281794464).

Almost surely, 2^19411249264 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 19411249264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22543557120).

19411249264 is an abundant number, since it is smaller than the sum of its proper divisors (25675864976).

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

19411249264 is a wasteful number, since it uses less digits than its factorization.

19411249264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2159 (or 2153 counting only the distinct ones).

The product of its digits is 124416, while the sum is 43.

The spelling of 19411249264 in words is "nineteen billion, four hundred eleven million, two hundred forty-nine thousand, two hundred sixty-four".