109050028687 has 4 divisors (see below), whose sum is σ = 110585944656. Its totient is φ = 107514112720.

The previous prime is 109050028679. The next prime is 109050028709. The reversal of 109050028687 is 786820050901.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 786820050901 = 937 ⋅839722573.

It is a cyclic number.

It is not a de Polignac number, because 109050028687 - 2³ = 109050028679 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 (109050028487) 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, 767957878 + ... + 767958019.

It is an arithmetic number, because the mean of its divisors is an integer number (27646486164).

Almost surely, 2^109050028687 is an apocalyptic number.

109050028687 is a deficient number, since it is larger than the sum of its proper divisors (1535915969).

109050028687 is an equidigital number, since it uses as much as digits as its factorization.

109050028687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1535915968.

The product of its (nonzero) digits is 241920, while the sum is 46.

The spelling of 109050028687 in words is "one hundred nine billion, fifty million, twenty-eight thousand, six hundred eighty-seven".