19461232448 has 112 divisors (see below), whose sum is σ = 46871656320. Its totient is φ = 7831240704.

The previous prime is 19461232447. The next prime is 19461232459. The reversal of 19461232448 is 84423216491.

It is a tau number, because it is divible by the number of its divisors (112).

It is a super-3 number, since 3×19461232448³ (a number of 32 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 19461232399 and 19461232408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19461232447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 951740 + ... + 971972.

Almost surely, 2^19461232448 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 19461232448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23435828160).

19461232448 is an abundant number, since it is smaller than the sum of its proper divisors (27410423872).

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

19461232448 is a wasteful number, since it uses less digits than its factorization.

19461232448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20384 (or 20374 counting only the distinct ones).

The product of its digits is 331776, while the sum is 44.

The spelling of 19461232448 in words is "nineteen billion, four hundred sixty-one million, two hundred thirty-two thousand, four hundred forty-eight".