2109703678 has 8 divisors (see below), whose sum is σ = 3164750568. Its totient is φ = 1054786824.

The previous prime is 2109703657. The next prime is 2109703691. The reversal of 2109703678 is 8763079012.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45300 + ... + 79192.

It is an arithmetic number, because the mean of its divisors is an integer number (395593821).

Almost surely, 2^2109703678 is an apocalyptic number.

2109703678 is a deficient number, since it is larger than the sum of its proper divisors (1055046890).

2109703678 is a wasteful number, since it uses less digits than its factorization.

2109703678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65018.

The product of its (nonzero) digits is 127008, while the sum is 43.

The square root of 2109703678 is about 45931.5107306520. The cubic root of 2109703678 is about 1282.5485676858.

The spelling of 2109703678 in words is "two billion, one hundred nine million, seven hundred three thousand, six hundred seventy-eight".