11287019519 has 8 divisors (see below), whose sum is σ = 11585049840. Its totient is φ = 10990072000.

The previous prime is 11287019503. The next prime is 11287019539. The reversal of 11287019519 is 91591078211.

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

It is a cyclic number.

It is not a de Polignac number, because 11287019519 - 2⁴ = 11287019503 is a prime.

It is a super-2 number, since 2×11287019519² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a zygodrome in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 11287019519.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11287019539) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 249557 + ... + 291294.

It is an arithmetic number, because the mean of its divisors is an integer number (1448131230).

Almost surely, 2^11287019519 is an apocalyptic number.

11287019519 is a deficient number, since it is larger than the sum of its proper divisors (298030321).

11287019519 is an equidigital number, since it uses as much as digits as its factorization.

11287019519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541401.

The product of its (nonzero) digits is 45360, while the sum is 44.

The spelling of 11287019519 in words is "eleven billion, two hundred eighty-seven million, nineteen thousand, five hundred nineteen".