11719287053 has 4 divisors (see below), whose sum is σ = 11719517628. Its totient is φ = 11719056480.

The previous prime is 11719287049. The next prime is 11719287071. The reversal of 11719287053 is 35078291711.

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 11661192169 + 58094884 = 107987^2 + 7622^2 .

It is a cyclic number.

It is not a de Polignac number, because 11719287053 - 2² = 11719287049 is a prime.

It is a super-2 number, since 2×11719287053² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11719286995 and 11719287013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11719287653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1826 + ... + 153107.

It is an arithmetic number, because the mean of its divisors is an integer number (2929879407).

Almost surely, 2^11719287053 is an apocalyptic number.

It is an amenable number.

11719287053 is a deficient number, since it is larger than the sum of its proper divisors (230575).

11719287053 is an equidigital number, since it uses as much as digits as its factorization.

11719287053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230574.

The product of its (nonzero) digits is 105840, while the sum is 44.

The spelling of 11719287053 in words is "eleven billion, seven hundred nineteen million, two hundred eighty-seven thousand, fifty-three".