109121947094358 has 144 divisors (see below), whose sum is σ = 274003490994480. Its totient is φ = 31120490496000.

The previous prime is 109121947094269. The next prime is 109121947094389. The reversal of 109121947094358 is 853490749121901.

109121947094358 is a `hidden beast` number, since 1 + 0 + 9 + 1 + 2 + 194 + 7 + 0 + 9 + 435 + 8 = 666.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 109121947094295 and 109121947094304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1464903178 + ... + 1464977666.

It is an arithmetic number, because the mean of its divisors is an integer number (1902802020795).

Almost surely, 2^{109121947094358} is an apocalyptic number.

109121947094358 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 109121947094358, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (137001745497240).

109121947094358 is an abundant number, since it is smaller than the sum of its proper divisors (164881543900122).

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

109121947094358 is a wasteful number, since it uses less digits than its factorization.

109121947094358 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100143 (or 100123 counting only the distinct ones).

The product of its (nonzero) digits is 19595520, while the sum is 63.

The spelling of 109121947094358 in words is "one hundred nine trillion, one hundred twenty-one billion, nine hundred forty-seven million, ninety-four thousand, three hundred fifty-eight".