111678628797 has 8 divisors (see below), whose sum is σ = 165449820480. Its totient is φ = 74452419180.

The previous prime is 111678628793. The next prime is 111678628799. The reversal of 111678628797 is 797826876111.

It is not a de Polignac number, because 111678628797 - 2² = 111678628793 is a prime.

It is a super-2 number, since 2×111678628797² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111678628793) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2068122729 + ... + 2068122782.

It is an arithmetic number, because the mean of its divisors is an integer number (20681227560).

Almost surely, 2^111678628797 is an apocalyptic number.

It is an amenable number.

111678628797 is a deficient number, since it is larger than the sum of its proper divisors (53771191683).

111678628797 is an equidigital number, since it uses as much as digits as its factorization.

111678628797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4136245520 (or 4136245514 counting only the distinct ones).

The product of its digits is 14224896, while the sum is 63.

The spelling of 111678628797 in words is "one hundred eleven billion, six hundred seventy-eight million, six hundred twenty-eight thousand, seven hundred ninety-seven".