2772478458 has 12 divisors (see below), whose sum is σ = 6007036698. Its totient is φ = 924159480.

The previous prime is 2772478421. The next prime is 2772478469. The reversal of 2772478458 is 8548742772.

2772478458 is a `hidden beast` number, since 277 + 247 + 84 + 58 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1825254729 + 947223729 = 42723^2 + 30777^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 77013273 + ... + 77013308.

Almost surely, 2^2772478458 is an apocalyptic number.

2772478458 is an abundant number, since it is smaller than the sum of its proper divisors (3234558240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2772478458 is a wasteful number, since it uses less digits than its factorization.

2772478458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154026589 (or 154026586 counting only the distinct ones).

The product of its digits is 7024640, while the sum is 54.

The square root of 2772478458 is about 52654.3299074255. The cubic root of 2772478458 is about 1404.8266158895.

The spelling of 2772478458 in words is "two billion, seven hundred seventy-two million, four hundred seventy-eight thousand, four hundred fifty-eight".