19269227146 has 32 divisors (see below), whose sum is σ = 31537594368. Its totient is φ = 8776978560.

The previous prime is 19269227143. The next prime is 19269227177. The reversal of 19269227146 is 64172296291.

It is a happy number.

It is a super-2 number, since 2×19269227146² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 19269227146.

It is not an unprimeable number, because it can be changed into a prime (19269227143) 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, 615406 + ... + 645958.

It is an arithmetic number, because the mean of its divisors is an integer number (985549824).

Almost surely, 2^19269227146 is an apocalyptic number.

19269227146 is a deficient number, since it is larger than the sum of its proper divisors (12268367222).

19269227146 is a wasteful number, since it uses less digits than its factorization.

19269227146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30886.

The product of its digits is 653184, while the sum is 49.

The spelling of 19269227146 in words is "nineteen billion, two hundred sixty-nine million, two hundred twenty-seven thousand, one hundred forty-six".