2278457793 has 36 divisors (see below), whose sum is σ = 3512230020. Its totient is φ = 1423322688.

The previous prime is 2278457777. The next prime is 2278457801. The reversal of 2278457793 is 3977548722.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 1254009744 + 1024448049 = 35412^2 + 32007^2 .

It is not a de Polignac number, because 2278457793 - 2⁴ = 2278457777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2278457773) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 10037146 + ... + 10037372.

It is an arithmetic number, because the mean of its divisors is an integer number (97561945).

Almost surely, 2^2278457793 is an apocalyptic number.

It is an amenable number.

2278457793 is a deficient number, since it is larger than the sum of its proper divisors (1233772227).

2278457793 is an frugal number, since it uses more digits than its factorization.

2278457793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511 (or 247 counting only the distinct ones).

The product of its digits is 5927040, while the sum is 54.

The square root of 2278457793 is about 47733.1938277757. The cubic root of 2278457793 is about 1315.8720510192.

The spelling of 2278457793 in words is "two billion, two hundred seventy-eight million, four hundred fifty-seven thousand, seven hundred ninety-three".