111694748479 has 4 divisors (see below), whose sum is σ = 115546291560. Its totient is φ = 107843205400.

The previous prime is 111694748419. The next prime is 111694748497. The reversal of 111694748479 is 974847496111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 974847496111 = 461 ⋅2114636651.

It is a cyclic number.

It is not a de Polignac number, because 111694748479 - 2⁷ = 111694748351 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 (111694748419) 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, 1925771497 + ... + 1925771554.

It is an arithmetic number, because the mean of its divisors is an integer number (28886572890).

Almost surely, 2^111694748479 is an apocalyptic number.

111694748479 is a deficient number, since it is larger than the sum of its proper divisors (3851543081).

111694748479 is an equidigital number, since it uses as much as digits as its factorization.

111694748479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3851543080.

The product of its digits is 12192768, while the sum is 61.

The spelling of 111694748479 in words is "one hundred eleven billion, six hundred ninety-four million, seven hundred forty-eight thousand, four hundred seventy-nine".