19496744454 has 32 divisors (see below), whose sum is σ = 42649473024. Its totient is φ = 5892670880.

The previous prime is 19496744453. The next prime is 19496744479. The reversal of 19496744454 is 45444769491.

It is a junction number, because it is equal to n+sod(n) for n = 19496744394 and 19496744403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19496744453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 360369 + ... + 410924.

It is an arithmetic number, because the mean of its divisors is an integer number (1332796032).

Almost surely, 2^19496744454 is an apocalyptic number.

19496744454 is an abundant number, since it is smaller than the sum of its proper divisors (23152728570).

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

19496744454 is a wasteful number, since it uses less digits than its factorization.

19496744454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 771692.

The product of its digits is 17418240, while the sum is 57.

The spelling of 19496744454 in words is "nineteen billion, four hundred ninety-six million, seven hundred forty-four thousand, four hundred fifty-four".