19028547136 has 63 divisors (see below), whose sum is σ = 38754974433. Its totient is φ = 9269836800.

The previous prime is 19028547121. The next prime is 19028547137. The reversal of 19028547136 is 63174582091.

The square root of 19028547136 is 137944.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 18839209536 + 189337600 = 137256^2 + 13760^2 .

It is a super-2 number, since 2×19028547136² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19028547137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 47452536 + ... + 47452936.

It is a 1-persistent number, because it is pandigital, but 2⋅19028547136 = 38057094272 is not.

Almost surely, 2^19028547136 is an apocalyptic number.

19028547136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

19028547136 is the 137944-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19028547136

19028547136 is an abundant number, since it is smaller than the sum of its proper divisors (19726427297).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19028547136 is an frugal number, since it uses more digits than its factorization.

19028547136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 900 (or 446 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 46.

The spelling of 19028547136 in words is "nineteen billion, twenty-eight million, five hundred forty-seven thousand, one hundred thirty-six".