11556347623 has 2 divisors, whose sum is σ = 11556347624. Its totient is φ = 11556347622.

The previous prime is 11556347573. The next prime is 11556347629. The reversal of 11556347623 is 32674365511.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11556347623 - 2⁹ = 11556347111 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11556347623.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11556347629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5778173811 + 5778173812.

It is an arithmetic number, because the mean of its divisors is an integer number (5778173812).

Almost surely, 2^11556347623 is an apocalyptic number.

11556347623 is a deficient number, since it is larger than the sum of its proper divisors (1).

11556347623 is an equidigital number, since it uses as much as digits as its factorization.

11556347623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 453600, while the sum is 43.

The spelling of 11556347623 in words is "eleven billion, five hundred fifty-six million, three hundred forty-seven thousand, six hundred twenty-three".