3705742778 has 8 divisors (see below), whose sum is σ = 5574634272. Its totient is φ = 1847531356.

The previous prime is 3705742771. The next prime is 3705742783. The reversal of 3705742778 is 8772475073.

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

It is not an unprimeable number, because it can be changed into a prime (3705742771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2669150 + ... + 2670537.

It is an arithmetic number, because the mean of its divisors is an integer number (696829284).

Almost surely, 2^3705742778 is an apocalyptic number.

3705742778 is a deficient number, since it is larger than the sum of its proper divisors (1868891494).

3705742778 is a wasteful number, since it uses less digits than its factorization.

3705742778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5340036.

The product of its (nonzero) digits is 2304960, while the sum is 50.

The square root of 3705742778 is about 60874.8123446800. The cubic root of 3705742778 is about 1547.4801621143.

The spelling of 3705742778 in words is "three billion, seven hundred five million, seven hundred forty-two thousand, seven hundred seventy-eight".