11461643623 has 2 divisors, whose sum is σ = 11461643624. Its totient is φ = 11461643622.

The previous prime is 11461643597. The next prime is 11461643647. The reversal of 11461643623 is 32634616411.

It is a strong prime.

It is an emirp because it is prime and its reverse (32634616411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11461643623 - 2¹³ = 11461635431 is a prime.

It is a super-2 number, since 2×11461643623² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11461647623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5730821811 + 5730821812.

It is an arithmetic number, because the mean of its divisors is an integer number (5730821812).

Almost surely, 2^11461643623 is an apocalyptic number.

11461643623 is a deficient number, since it is larger than the sum of its proper divisors (1).

11461643623 is an equidigital number, since it uses as much as digits as its factorization.

11461643623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62208, while the sum is 37.

The spelling of 11461643623 in words is "eleven billion, four hundred sixty-one million, six hundred forty-three thousand, six hundred twenty-three".