19001479147 has 16 divisors (see below), whose sum is σ = 21785879232. Its totient is φ = 16234646400.

The previous prime is 19001479067. The next prime is 19001479163. The reversal of 19001479147 is 74197410091.

It is not a de Polignac number, because 19001479147 - 2²³ = 18993090539 is a prime.

It is a super-2 number, since 2×19001479147² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19001479247) 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, 3004833 + ... + 3011149.

It is an arithmetic number, because the mean of its divisors is an integer number (1361617452).

Almost surely, 2^19001479147 is an apocalyptic number.

19001479147 is a deficient number, since it is larger than the sum of its proper divisors (2784400085).

19001479147 is an equidigital number, since it uses as much as digits as its factorization.

19001479147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7638.

The product of its (nonzero) digits is 63504, while the sum is 43.

The spelling of 19001479147 in words is "nineteen billion, one million, four hundred seventy-nine thousand, one hundred forty-seven".