19442413578 has 32 divisors (see below), whose sum is σ = 45385334784. Its totient is φ = 5436783792.

The previous prime is 19442413577. The next prime is 19442413583. The reversal of 19442413578 is 87531424491.

It is not an unprimeable number, because it can be changed into a prime (19442413577) 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, 4922650 + ... + 4926597.

It is an arithmetic number, because the mean of its divisors is an integer number (1418291712).

Almost surely, 2^19442413578 is an apocalyptic number.

19442413578 is an abundant number, since it is smaller than the sum of its proper divisors (25942921206).

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

19442413578 is a wasteful number, since it uses less digits than its factorization.

19442413578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9849306.

The product of its digits is 967680, while the sum is 48.

The spelling of 19442413578 in words is "nineteen billion, four hundred forty-two million, four hundred thirteen thousand, five hundred seventy-eight".