108198969540539 has 2 divisors, whose sum is σ = 108198969540540. Its totient is φ = 108198969540538.

The previous prime is 108198969540433. The next prime is 108198969540559. The reversal of 108198969540539 is 935045969891801.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-108198969540539 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 108198969540539.

It is not a weakly prime, because it can be changed into another prime (108198969540559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54099484770269 + 54099484770270.

It is an arithmetic number, because the mean of its divisors is an integer number (54099484770270).

Almost surely, 2^{108198969540539} is an apocalyptic number.

108198969540539 is a deficient number, since it is larger than the sum of its proper divisors (1).

108198969540539 is an equidigital number, since it uses as much as digits as its factorization.

108198969540539 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 755827200, while the sum is 77.

The spelling of 108198969540539 in words is "one hundred eight trillion, one hundred ninety-eight billion, nine hundred sixty-nine million, five hundred forty thousand, five hundred thirty-nine".