17620268623 has 2 divisors, whose sum is σ = 17620268624. Its totient is φ = 17620268622.

The previous prime is 17620268599. The next prime is 17620268641. The reversal of 17620268623 is 32686202671.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 17620268623 - 2¹³ = 17620260431 is a prime.

It is a super-2 number, since 2×17620268623² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 17620268623.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (17620268663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8810134311 + 8810134312.

It is an arithmetic number, because the mean of its divisors is an integer number (8810134312).

Almost surely, 2^17620268623 is an apocalyptic number.

17620268623 is a deficient number, since it is larger than the sum of its proper divisors (1).

17620268623 is an equidigital number, since it uses as much as digits as its factorization.

17620268623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 290304, while the sum is 43.

The spelling of 17620268623 in words is "seventeen billion, six hundred twenty million, two hundred sixty-eight thousand, six hundred twenty-three".