109745217043 has 32 divisors (see below), whose sum is σ = 140853657600. Its totient is φ = 84758647680.

The previous prime is 109745217037. The next prime is 109745217053. The reversal of 109745217043 is 340712547901.

It is not a de Polignac number, because 109745217043 - 2⁵ = 109745217011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109745217013) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 297646 + ... + 555052.

It is an arithmetic number, because the mean of its divisors is an integer number (4401676800).

Almost surely, 2^109745217043 is an apocalyptic number.

109745217043 is a deficient number, since it is larger than the sum of its proper divisors (31108440557).

109745217043 is a wasteful number, since it uses less digits than its factorization.

109745217043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257552 (or 257538 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 43.

The spelling of 109745217043 in words is "one hundred nine billion, seven hundred forty-five million, two hundred seventeen thousand, forty-three".