10399493543 has 2 divisors, whose sum is σ = 10399493544. Its totient is φ = 10399493542.

The previous prime is 10399493513. The next prime is 10399493551. The reversal of 10399493543 is 34539499301.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10399493543 - 2¹⁸ = 10399231399 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10399493491 and 10399493500.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10399493513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5199746771 + 5199746772.

It is an arithmetic number, because the mean of its divisors is an integer number (5199746772).

Almost surely, 2^10399493543 is an apocalyptic number.

10399493543 is a deficient number, since it is larger than the sum of its proper divisors (1).

10399493543 is an equidigital number, since it uses as much as digits as its factorization.

10399493543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1574640, while the sum is 50.

The spelling of 10399493543 in words is "ten billion, three hundred ninety-nine million, four hundred ninety-three thousand, five hundred forty-three".