2079306778 has 8 divisors (see below), whose sum is σ = 3124424160. Its totient is φ = 1037832060.

The previous prime is 2079306773. The next prime is 2079306809. The reversal of 2079306778 is 8776039702.

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 (2079306773) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 909238 + ... + 911521.

It is an arithmetic number, because the mean of its divisors is an integer number (390553020).

Almost surely, 2^2079306778 is an apocalyptic number.

2079306778 is a deficient number, since it is larger than the sum of its proper divisors (1045117382).

2079306778 is a wasteful number, since it uses less digits than its factorization.

2079306778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1821332.

The product of its (nonzero) digits is 889056, while the sum is 49.

The square root of 2079306778 is about 45599.4164217043. The cubic root of 2079306778 is about 1276.3590333612.

The spelling of 2079306778 in words is "two billion, seventy-nine million, three hundred six thousand, seven hundred seventy-eight".