19269227145 has 32 divisors (see below), whose sum is σ = 35564479488. Its totient is φ = 8726459328.

The previous prime is 19269227143. The next prime is 19269227177. The reversal of 19269227145 is 54172296291.

It is a happy number.

It is not a de Polignac number, because 19269227145 - 2¹ = 19269227143 is a prime.

It is a super-2 number, since 2×19269227145² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 19269227094 and 19269227103.

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 31 ways as a sum of consecutive naturals, for example, 846319 + ... + 868788.

It is an arithmetic number, because the mean of its divisors is an integer number (1111389984).

Almost surely, 2^19269227145 is an apocalyptic number.

19269227145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

19269227145 is a deficient number, since it is larger than the sum of its proper divisors (16295252343).

19269227145 is a wasteful number, since it uses less digits than its factorization.

19269227145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1715229.

The product of its digits is 544320, while the sum is 48.

The spelling of 19269227145 in words is "nineteen billion, two hundred sixty-nine million, two hundred twenty-seven thousand, one hundred forty-five".