2772857155 has 16 divisors (see below), whose sum is σ = 3437280000. Its totient is φ = 2145156480.

The previous prime is 2772857147. The next prime is 2772857173. The reversal of 2772857155 is 5517582772.

It is not a de Polignac number, because 2772857155 - 2³ = 2772857147 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2772857099 and 2772857108.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 234321 + ... + 245869.

It is an arithmetic number, because the mean of its divisors is an integer number (214830000).

Almost surely, 2^2772857155 is an apocalyptic number.

2772857155 is a deficient number, since it is larger than the sum of its proper divisors (664422845).

2772857155 is a wasteful number, since it uses less digits than its factorization.

2772857155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13134.

The product of its digits is 1372000, while the sum is 49.

The square root of 2772857155 is about 52657.9258516702. The cubic root of 2772857155 is about 1404.8905754372.

The spelling of 2772857155 in words is "two billion, seven hundred seventy-two million, eight hundred fifty-seven thousand, one hundred fifty-five".