109287543545 has 16 divisors (see below), whose sum is σ = 131515947840. Its totient is φ = 87182910144.

The previous prime is 109287543529. The next prime is 109287543551. The reversal of 109287543545 is 545345782901.

It is a cyclic number.

It is not a de Polignac number, because 109287543545 - 2⁴ = 109287543529 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8654246 + ... + 8666864.

It is an arithmetic number, because the mean of its divisors is an integer number (8219746740).

Almost surely, 2^109287543545 is an apocalyptic number.

It is an amenable number.

109287543545 is a deficient number, since it is larger than the sum of its proper divisors (22228404295).

109287543545 is a wasteful number, since it uses less digits than its factorization.

109287543545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17384.

The product of its (nonzero) digits is 6048000, while the sum is 53.

The spelling of 109287543545 in words is "one hundred nine billion, two hundred eighty-seven million, five hundred forty-three thousand, five hundred forty-five".