19220487898 has 8 divisors (see below), whose sum is σ = 28838011392. Its totient is φ = 9607817436.

The previous prime is 19220487893. The next prime is 19220487973. The reversal of 19220487898 is 89878402291.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (19220487893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1203340 + ... + 1219207.

It is an arithmetic number, because the mean of its divisors is an integer number (3604751424).

Almost surely, 2^19220487898 is an apocalyptic number.

19220487898 is a deficient number, since it is larger than the sum of its proper divisors (9617523494).

19220487898 is a wasteful number, since it uses less digits than its factorization.

19220487898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2426516.

The product of its (nonzero) digits is 4644864, while the sum is 58.

The spelling of 19220487898 in words is "nineteen billion, two hundred twenty million, four hundred eighty-seven thousand, eight hundred ninety-eight".