111345777892 has 6 divisors (see below), whose sum is σ = 194855111318. Its totient is φ = 55672888944.

The previous prime is 111345777889. The next prime is 111345777923. The reversal of 111345777892 is 298777543111.

It can be written as a sum of positive squares in only one way, i.e., 79238872036 + 32106905856 = 281494^2 + 179184^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13918222233 + ... + 13918222240.

Almost surely, 2^111345777892 is an apocalyptic number.

It is an amenable number.

111345777892 is a deficient number, since it is larger than the sum of its proper divisors (83509333426).

111345777892 is a wasteful number, since it uses less digits than its factorization.

111345777892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27836444477 (or 27836444475 counting only the distinct ones).

The product of its digits is 2963520, while the sum is 55.

The spelling of 111345777892 in words is "one hundred eleven billion, three hundred forty-five million, seven hundred seventy-seven thousand, eight hundred ninety-two".