109291401043776 has 392 divisors, whose sum is σ = 391174683922880. Its totient is φ = 29582633189376.

The previous prime is 109291401043753. The next prime is 109291401043793. The reversal of 109291401043776 is 677340104192901.

109291401043776 is a `hidden beast` number, since 1 + 0 + 9 + 2 + 91 + 40 + 10 + 437 + 76 = 666.

109291401043776 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×109291401043776² (a number of 29 digits) contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 2601121 + ... + 15011616.

Almost surely, 2^{109291401043776} is an apocalyptic number.

109291401043776 is a gapful number since it is divisible by the number (16) 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 109291401043776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (195587341961440).

109291401043776 is an abundant number, since it is smaller than the sum of its proper divisors (281883282879104).

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

109291401043776 is an equidigital number, since it uses as much as digits as its factorization.

109291401043776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17612793 (or 17612768 counting only the distinct ones).

The product of its (nonzero) digits is 2286144, while the sum is 54.

The spelling of 109291401043776 in words is "one hundred nine trillion, two hundred ninety-one billion, four hundred one million, forty-three thousand, seven hundred seventy-six".