111344448477 has 4 divisors (see below), whose sum is σ = 148459264640. Its totient is φ = 74229632316.

The previous prime is 111344448473. The next prime is 111344448511. The reversal of 111344448477 is 774844443111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 111344448477 - 2² = 111344448473 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 (111344448473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18557408077 + ... + 18557408082.

It is an arithmetic number, because the mean of its divisors is an integer number (37114816160).

Almost surely, 2^111344448477 is an apocalyptic number.

It is an amenable number.

111344448477 is a deficient number, since it is larger than the sum of its proper divisors (37114816163).

111344448477 is an equidigital number, since it uses as much as digits as its factorization.

111344448477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37114816162.

The product of its digits is 1204224, while the sum is 48.

The spelling of 111344448477 in words is "one hundred eleven billion, three hundred forty-four million, four hundred forty-eight thousand, four hundred seventy-seven".