2076772657 has 4 divisors (see below), whose sum is σ = 2079208180. Its totient is φ = 2074337136.

The previous prime is 2076772651. The next prime is 2076772661. The reversal of 2076772657 is 7562776702.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 65788321 + 2010984336 = 8111^2 + 44844^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2076772657 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2076772657.

It is not an unprimeable number, because it can be changed into a prime (2076772651) 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, 1216482 + ... + 1218187.

It is an arithmetic number, because the mean of its divisors is an integer number (519802045).

Almost surely, 2^2076772657 is an apocalyptic number.

It is an amenable number.

2076772657 is a deficient number, since it is larger than the sum of its proper divisors (2435523).

2076772657 is an equidigital number, since it uses as much as digits as its factorization.

2076772657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2435522.

The product of its (nonzero) digits is 1728720, while the sum is 49.

The square root of 2076772657 is about 45571.6211802916. The cubic root of 2076772657 is about 1275.8403087023.

The spelling of 2076772657 in words is "two billion, seventy-six million, seven hundred seventy-two thousand, six hundred fifty-seven".