111777040988 has 12 divisors (see below), whose sum is σ = 198816540552. Its totient is φ = 54972315120.

The previous prime is 111777040961. The next prime is 111777040993. The reversal of 111777040988 is 889040777111.

It is a super-2 number, since 2×111777040988² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 229051070 + ... + 229051557.

It is an arithmetic number, because the mean of its divisors is an integer number (16568045046).

Almost surely, 2^111777040988 is an apocalyptic number.

It is an amenable number.

111777040988 is a deficient number, since it is larger than the sum of its proper divisors (87039499564).

111777040988 is a wasteful number, since it uses less digits than its factorization.

111777040988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458102692 (or 458102690 counting only the distinct ones).

The product of its (nonzero) digits is 790272, while the sum is 53.

The spelling of 111777040988 in words is "one hundred eleven billion, seven hundred seventy-seven million, forty thousand, nine hundred eighty-eight".