109534635677 has 4 divisors (see below), whose sum is σ = 109556737596. Its totient is φ = 109512533760.

The previous prime is 109534635631. The next prime is 109534635697. The reversal of 109534635677 is 776536435901.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 776536435901 = 359 ⋅2163054139.

It can be written as a sum of positive squares in 2 ways, for example, as 44441277721 + 65093357956 = 210811^2 + 255134^2 .

It is a cyclic number.

It is not a de Polignac number, because 109534635677 - 2¹⁰ = 109534634653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109534635607) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11043524 + ... + 11053437.

It is an arithmetic number, because the mean of its divisors is an integer number (27389184399).

Almost surely, 2^109534635677 is an apocalyptic number.

It is an amenable number.

109534635677 is a deficient number, since it is larger than the sum of its proper divisors (22101919).

109534635677 is an equidigital number, since it uses as much as digits as its factorization.

109534635677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22101918.

The product of its (nonzero) digits is 14288400, while the sum is 56.

The spelling of 109534635677 in words is "one hundred nine billion, five hundred thirty-four million, six hundred thirty-five thousand, six hundred seventy-seven".