2046660778 has 8 divisors (see below), whose sum is σ = 3135310272. Its totient is φ = 1001557356.

The previous prime is 2046660751. The next prime is 2046660793. The reversal of 2046660778 is 8770666402.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10886400 + ... + 10886587.

It is an arithmetic number, because the mean of its divisors is an integer number (391913784).

Almost surely, 2^2046660778 is an apocalyptic number.

2046660778 is a deficient number, since it is larger than the sum of its proper divisors (1088649494).

2046660778 is a wasteful number, since it uses less digits than its factorization.

2046660778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21773036.

The product of its (nonzero) digits is 677376, while the sum is 46.

The square root of 2046660778 is about 45240.0351237706. The cubic root of 2046660778 is about 1269.6439736106.

The spelling of 2046660778 in words is "two billion, forty-six million, six hundred sixty thousand, seven hundred seventy-eight".