111420786897 has 64 divisors (see below), whose sum is σ = 200078622720. Its totient is φ = 59902286400.

The previous prime is 111420786863. The next prime is 111420786907. The reversal of 111420786897 is 798687024111.

111420786897 is a `hidden beast` number, since 1 + 1 + 1 + 420 + 78 + 68 + 97 = 666.

It is not a de Polignac number, because 111420786897 - 2⁷ = 111420786769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111420782897) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 55072 + ... + 475262.

It is an arithmetic number, because the mean of its divisors is an integer number (3126228480).

Almost surely, 2^111420786897 is an apocalyptic number.

It is an amenable number.

111420786897 is a deficient number, since it is larger than the sum of its proper divisors (88657835823).

111420786897 is a wasteful number, since it uses less digits than its factorization.

111420786897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420291 (or 420285 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 54.

The spelling of 111420786897 in words is "one hundred eleven billion, four hundred twenty million, seven hundred eighty-six thousand, eight hundred ninety-seven".