19895214099 has 8 divisors (see below), whose sum is σ = 26555510160. Its totient is φ = 13249197056.

The previous prime is 19895214091. The next prime is 19895214139. The reversal of 19895214099 is 99041259891.

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

It is a cyclic number.

It is not a de Polignac number, because 19895214099 - 2³ = 19895214091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (19895214091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3566502 + ... + 3572075.

It is an arithmetic number, because the mean of its divisors is an integer number (3319438770).

Almost surely, 2^19895214099 is an apocalyptic number.

19895214099 is a deficient number, since it is larger than the sum of its proper divisors (6660296061).

19895214099 is an equidigital number, since it uses as much as digits as its factorization.

19895214099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7139509.

The product of its (nonzero) digits is 2099520, while the sum is 57.

The spelling of 19895214099 in words is "nineteen billion, eight hundred ninety-five million, two hundred fourteen thousand, ninety-nine".