111575861349 has 8 divisors (see below), whose sum is σ = 148773072672. Its totient is φ = 74381278800.

The previous prime is 111575861347. The next prime is 111575861351. The reversal of 111575861349 is 943168575111.

It is an interprime number because it is at equal distance from previous prime (111575861347) and next prime (111575861351).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 111575861349 - 2¹ = 111575861347 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111575861347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 555927 + ... + 729524.

It is an arithmetic number, because the mean of its divisors is an integer number (18596634084).

Almost surely, 2^111575861349 is an apocalyptic number.

It is an amenable number.

111575861349 is a deficient number, since it is larger than the sum of its proper divisors (37197211323).

111575861349 is a wasteful number, since it uses less digits than its factorization.

111575861349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1314387.

The product of its digits is 907200, while the sum is 51.

The spelling of 111575861349 in words is "one hundred eleven billion, five hundred seventy-five million, eight hundred sixty-one thousand, three hundred forty-nine".