111795826428 has 240 divisors, whose sum is σ = 363549773664. Its totient is φ = 29431848960.

The previous prime is 111795826423. The next prime is 111795826481. The reversal of 111795826428 is 824628597111.

111795826428 is a `hidden beast` number, since 1 + 1 + 17 + 9 + 582 + 6 + 42 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111795826423) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 716676 + ... + 858612.

Almost surely, 2^111795826428 is an apocalyptic number.

111795826428 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111795826428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181774886832).

111795826428 is an abundant number, since it is smaller than the sum of its proper divisors (251753947236).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111795826428 is a wasteful number, since it uses less digits than its factorization.

111795826428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141994 (or 141983 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 54.

The spelling of 111795826428 in words is "one hundred eleven billion, seven hundred ninety-five million, eight hundred twenty-six thousand, four hundred twenty-eight".