109542417547 has 16 divisors (see below), whose sum is σ = 114106718880. Its totient is φ = 105032793600.

The previous prime is 109542417541. The next prime is 109542417577. The reversal of 109542417547 is 745714245901.

It is a cyclic number.

It is not a de Polignac number, because 109542417547 - 2³ = 109542417539 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 109542417547.

It is not an unprimeable number, because it can be changed into a prime (109542417541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2801443 + ... + 2840275.

It is an arithmetic number, because the mean of its divisors is an integer number (7131669930).

Almost surely, 2^109542417547 is an apocalyptic number.

109542417547 is a deficient number, since it is larger than the sum of its proper divisors (4564301333).

109542417547 is a wasteful number, since it uses less digits than its factorization.

109542417547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39534.

The product of its (nonzero) digits is 1411200, while the sum is 49.

The spelling of 109542417547 in words is "one hundred nine billion, five hundred forty-two million, four hundred seventeen thousand, five hundred forty-seven".