19475549914 has 4 divisors (see below), whose sum is σ = 29213324874. Its totient is φ = 9737774956.

The previous prime is 19475549903. The next prime is 19475549959. The reversal of 19475549914 is 41994557491.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 41994557491 = 541 ⋅77623951.

It can be written as a sum of positive squares in only one way, i.e., 10466313025 + 9009236889 = 102305^2 + 94917^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4868887477 + ... + 4868887480.

Almost surely, 2^19475549914 is an apocalyptic number.

19475549914 is a deficient number, since it is larger than the sum of its proper divisors (9737774960).

19475549914 is an equidigital number, since it uses as much as digits as its factorization.

19475549914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9737774959.

The product of its digits is 8164800, while the sum is 58.

The spelling of 19475549914 in words is "nineteen billion, four hundred seventy-five million, five hundred forty-nine thousand, nine hundred fourteen".