2773664457 has 16 divisors (see below), whose sum is σ = 3819105792. Its totient is φ = 1788716160.

The previous prime is 2773664447. The next prime is 2773664471. The reversal of 2773664457 is 7544663772.

It is not a de Polignac number, because 2773664457 - 2⁷ = 2773664329 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2773664447) 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, 298323 + ... + 307479.

It is an arithmetic number, because the mean of its divisors is an integer number (238694112).

Almost surely, 2^2773664457 is an apocalyptic number.

It is an amenable number.

2773664457 is a deficient number, since it is larger than the sum of its proper divisors (1045441335).

2773664457 is a wasteful number, since it uses less digits than its factorization.

2773664457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12448.

The product of its digits is 5927040, while the sum is 51.

The square root of 2773664457 is about 52665.5908255096. The cubic root of 2773664457 is about 1405.0269042437.

The spelling of 2773664457 in words is "two billion, seven hundred seventy-three million, six hundred sixty-four thousand, four hundred fifty-seven".