109391436075 has 54 divisors (see below), whose sum is σ = 182731263156. Its totient is φ = 57744792000.

The previous prime is 109391436073. The next prime is 109391436097. The reversal of 109391436075 is 570634193901.

It is not a de Polignac number, because 109391436075 - 2¹ = 109391436073 is a prime.

It is a super-2 number, since 2×109391436075² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (109391436071) by changing a digit.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 518442720 + ... + 518442930.

Almost surely, 2^109391436075 is an apocalyptic number.

109391436075 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

109391436075 is a deficient number, since it is larger than the sum of its proper divisors (73339827081).

109391436075 is an frugal number, since it uses more digits than its factorization.

109391436075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 797 (or 400 counting only the distinct ones).

The product of its (nonzero) digits is 612360, while the sum is 48.

Multiplying 109391436075 by its sum of digits (48), we get a square (5250788931600 = 2291460²).

The spelling of 109391436075 in words is "one hundred nine billion, three hundred ninety-one million, four hundred thirty-six thousand, seventy-five".