2079777678 has 32 divisors (see below), whose sum is σ = 4549070592. Its totient is φ = 628656000.

The previous prime is 2079777673. The next prime is 2079777697. The reversal of 2079777678 is 8767779702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2079777673) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12826 + ... + 65757.

It is an arithmetic number, because the mean of its divisors is an integer number (142158456).

Almost surely, 2^2079777678 is an apocalyptic number.

2079777678 is an abundant number, since it is smaller than the sum of its proper divisors (2469292914).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2079777678 is a wasteful number, since it uses less digits than its factorization.

2079777678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79000.

The product of its (nonzero) digits is 14521248, while the sum is 60.

The square root of 2079777678 is about 45604.5795726701. The cubic root of 2079777678 is about 1276.4553783079.

The spelling of 2079777678 in words is "two billion, seventy-nine million, seven hundred seventy-seven thousand, six hundred seventy-eight".