108963617591 has 2 divisors, whose sum is σ = 108963617592. Its totient is φ = 108963617590.

The previous prime is 108963617573. The next prime is 108963617627. The reversal of 108963617591 is 195716369801.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-108963617591 is a prime.

It is a super-3 number, since 3×108963617591³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (108963617491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54481808795 + 54481808796.

It is an arithmetic number, because the mean of its divisors is an integer number (54481808796).

Almost surely, 2^108963617591 is an apocalyptic number.

108963617591 is a deficient number, since it is larger than the sum of its proper divisors (1).

108963617591 is an equidigital number, since it uses as much as digits as its factorization.

108963617591 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2449440, while the sum is 56.

The spelling of 108963617591 in words is "one hundred eight billion, nine hundred sixty-three million, six hundred seventeen thousand, five hundred ninety-one".