109445578857 has 12 divisors (see below), whose sum is σ = 158093410800. Its totient is φ = 72961248888.

The previous prime is 109445578841. The next prime is 109445578871. The reversal of 109445578857 is 758875544901.

109445578857 is a `hidden beast` number, since 1 + 0 + 9 + 4 + 4 + 5 + 578 + 8 + 57 = 666.

It is not a de Polignac number, because 109445578857 - 2⁴ = 109445578841 is a prime.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 109445578794 and 109445578803.

It is not an unprimeable number, because it can be changed into a prime (109445578897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 98394 + ... + 478092.

It is an arithmetic number, because the mean of its divisors is an integer number (13174450900).

Almost surely, 2^109445578857 is an apocalyptic number.

It is an amenable number.

109445578857 is a deficient number, since it is larger than the sum of its proper divisors (48647831943).

109445578857 is a wasteful number, since it uses less digits than its factorization.

109445578857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411732 (or 411729 counting only the distinct ones).

The product of its (nonzero) digits is 56448000, while the sum is 63.

The spelling of 109445578857 in words is "one hundred nine billion, four hundred forty-five million, five hundred seventy-eight thousand, eight hundred fifty-seven".