2078791197 has 16 divisors (see below), whose sum is σ = 3334402560. Its totient is φ = 1125360432.

The previous prime is 2078791181. The next prime is 2078791207. The reversal of 2078791197 is 7911978702.

It is a happy number.

It is not a de Polignac number, because 2078791197 - 2⁴ = 2078791181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2078791147) 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, 2604603 + ... + 2605400.

It is an arithmetic number, because the mean of its divisors is an integer number (208400160).

Almost surely, 2^2078791197 is an apocalyptic number.

It is an amenable number.

2078791197 is a deficient number, since it is larger than the sum of its proper divisors (1255611363).

2078791197 is a wasteful number, since it uses less digits than its factorization.

2078791197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5210032.

The product of its (nonzero) digits is 444528, while the sum is 51.

The square root of 2078791197 is about 45593.7626984218. The cubic root of 2078791197 is about 1276.2535301117.

The spelling of 2078791197 in words is "two billion, seventy-eight million, seven hundred ninety-one thousand, one hundred ninety-seven".