109493837639 has 4 divisors (see below), whose sum is σ = 109494809424. Its totient is φ = 109492865856.

The previous prime is 109493837599. The next prime is 109493837653. The reversal of 109493837639 is 936738394901.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 936738394901 = 197 ⋅4755017233.

It is a cyclic number.

It is not a de Polignac number, because 109493837639 - 2¹² = 109493833543 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 (109493837939) 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, 290762 + ... + 550935.

It is an arithmetic number, because the mean of its divisors is an integer number (27373702356).

Almost surely, 2^109493837639 is an apocalyptic number.

109493837639 is a deficient number, since it is larger than the sum of its proper divisors (971785).

109493837639 is an equidigital number, since it uses as much as digits as its factorization.

109493837639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 971784.

The product of its (nonzero) digits is 26453952, while the sum is 62.

The spelling of 109493837639 in words is "one hundred nine billion, four hundred ninety-three million, eight hundred thirty-seven thousand, six hundred thirty-nine".