19012433518 has 32 divisors (see below), whose sum is σ = 31242187872. Its totient is φ = 8623843200.

The previous prime is 19012433507. The next prime is 19012433537. The reversal of 19012433518 is 81533421091.

It is a super-2 number, since 2×19012433518² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2173213 + ... + 2181943.

It is an arithmetic number, because the mean of its divisors is an integer number (976318371).

Almost surely, 2^19012433518 is an apocalyptic number.

19012433518 is a deficient number, since it is larger than the sum of its proper divisors (12229754354).

19012433518 is a wasteful number, since it uses less digits than its factorization.

19012433518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10180.

The product of its (nonzero) digits is 25920, while the sum is 37.

The spelling of 19012433518 in words is "nineteen billion, twelve million, four hundred thirty-three thousand, five hundred eighteen".