13500000019 has 4 divisors (see below), whose sum is σ = 14727272760. Its totient is φ = 12272727280.

The previous prime is 13499999987. The next prime is 13500000037. The reversal of 13500000019 is 91000000531.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 13500000019 - 2⁵ = 13499999987 is a prime.

It is a super-2 number, since 2×13500000019² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13499999951 and 13500000005.

It is not an unprimeable number, because it can be changed into a prime (13500004019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 613636354 + ... + 613636375.

It is an arithmetic number, because the mean of its divisors is an integer number (3681818190).

Almost surely, 2^13500000019 is an apocalyptic number.

13500000019 is a deficient number, since it is larger than the sum of its proper divisors (1227272741).

13500000019 is a wasteful number, since it uses less digits than its factorization.

13500000019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1227272740.

The product of its (nonzero) digits is 135, while the sum is 19.

The spelling of 13500000019 in words is "thirteen billion, five hundred million, nineteen", and thus it is an aban number.