19052868385 has 4 divisors (see below), whose sum is σ = 22863442068. Its totient is φ = 15242294704.

The previous prime is 19052868353. The next prime is 19052868433. The reversal of 19052868385 is 58386825091.

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

It can be written as a sum of positive squares in 2 ways, for example, as 13585301136 + 5467567249 = 116556^2 + 73943^2 .

It is a cyclic number.

It is not a de Polignac number, because 19052868385 - 2⁵ = 19052868353 is a prime.

It is a super-2 number, since 2×19052868385² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

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, 1905286834 + ... + 1905286843.

It is an arithmetic number, because the mean of its divisors is an integer number (5715860517).

Almost surely, 2^19052868385 is an apocalyptic number.

It is an amenable number.

19052868385 is a deficient number, since it is larger than the sum of its proper divisors (3810573683).

19052868385 is an equidigital number, since it uses as much as digits as its factorization.

19052868385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3810573682.

The product of its (nonzero) digits is 4147200, while the sum is 55.

The spelling of 19052868385 in words is "nineteen billion, fifty-two million, eight hundred sixty-eight thousand, three hundred eighty-five".