19012724090 has 8 divisors (see below), whose sum is σ = 34222903380. Its totient is φ = 7605089632.

The previous prime is 19012724089. The next prime is 19012724131. The reversal of 19012724090 is 9042721091.

It can be written as a sum of positive squares in 2 ways, for example, as 18024942049 + 987782041 = 134257^2 + 31429^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×19012724090² (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 19012724090.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 950636195 + ... + 950636214.

Almost surely, 2^19012724090 is an apocalyptic number.

19012724090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19012724090 is a deficient number, since it is larger than the sum of its proper divisors (15210179290).

19012724090 is a wasteful number, since it uses less digits than its factorization.

19012724090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1901272416.

The product of its (nonzero) digits is 9072, while the sum is 35.

The spelling of 19012724090 in words is "nineteen billion, twelve million, seven hundred twenty-four thousand, ninety".