11645713819 has 2 divisors, whose sum is σ = 11645713820. Its totient is φ = 11645713818.

The previous prime is 11645713817. The next prime is 11645713853. The reversal of 11645713819 is 91831754611.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11645713819 - 2¹ = 11645713817 is a prime.

It is a super-2 number, since 2×11645713819² (a number of 21 digits) contains 22 as substring.

Together with 11645713817, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (11645713817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5822856909 + 5822856910.

It is an arithmetic number, because the mean of its divisors is an integer number (5822856910).

Almost surely, 2^11645713819 is an apocalyptic number.

11645713819 is a deficient number, since it is larger than the sum of its proper divisors (1).

11645713819 is an equidigital number, since it uses as much as digits as its factorization.

11645713819 is an evil number, because the sum of its binary digits is even.

The product of its digits is 181440, while the sum is 46.

The spelling of 11645713819 in words is "eleven billion, six hundred forty-five million, seven hundred thirteen thousand, eight hundred nineteen".