19461242752 has 32 divisors (see below), whose sum is σ = 44309081520. Its totient is φ = 8340532224.

The previous prime is 19461242719. The next prime is 19461242753. The reversal of 19461242752 is 25724216491.

It is a tau number, because it is divible by the number of its divisors (32).

It is a junction number, because it is equal to n+sod(n) for n = 19461242699 and 19461242708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19461242753) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10859173 + ... + 10860964.

Almost surely, 2^19461242752 is an apocalyptic number.

It is an amenable number.

19461242752 is an abundant number, since it is smaller than the sum of its proper divisors (24847838768).

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

19461242752 is an equidigital number, since it uses as much as digits as its factorization.

19461242752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21720158 (or 21720146 counting only the distinct ones).

The product of its digits is 241920, while the sum is 43.

The spelling of 19461242752 in words is "nineteen billion, four hundred sixty-one million, two hundred forty-two thousand, seven hundred fifty-two".