2755772645 has 8 divisors (see below), whose sum is σ = 3356284704. Its totient is φ = 2171713104.

The previous prime is 2755772633. The next prime is 2755772671. The reversal of 2755772645 is 5462775572.

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

It is a cyclic number.

It is not a de Polignac number, because 2755772645 - 2⁸ = 2755772389 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2755772593 and 2755772602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4112759 + ... + 4113428.

It is an arithmetic number, because the mean of its divisors is an integer number (419535588).

Almost surely, 2^2755772645 is an apocalyptic number.

It is an amenable number.

2755772645 is a deficient number, since it is larger than the sum of its proper divisors (600512059).

2755772645 is an equidigital number, since it uses as much as digits as its factorization.

2755772645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8226259.

The product of its digits is 4116000, while the sum is 50.

The square root of 2755772645 is about 52495.4535650469. The cubic root of 2755772645 is about 1401.9992940250. Note that the first 3 decimals are identical.

The spelling of 2755772645 in words is "two billion, seven hundred fifty-five million, seven hundred seventy-two thousand, six hundred forty-five".