2318578049 has 2 divisors, whose sum is σ = 2318578050. Its totient is φ = 2318578048.

The previous prime is 2318578033. The next prime is 2318578057. The reversal of 2318578049 is 9408758132.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1786583824 + 531994225 = 42268^2 + 23065^2 .

It is a cyclic number.

It is not a de Polignac number, because 2318578049 - 2⁴ = 2318578033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2318577994 and 2318578012.

It is not a weakly prime, because it can be changed into another prime (2318578019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1159289024 + 1159289025.

It is an arithmetic number, because the mean of its divisors is an integer number (1159289025).

Almost surely, 2^2318578049 is an apocalyptic number.

It is an amenable number.

2318578049 is a deficient number, since it is larger than the sum of its proper divisors (1).

2318578049 is an equidigital number, since it uses as much as digits as its factorization.

2318578049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 483840, while the sum is 47.

The square root of 2318578049 is about 48151.6152273213. The cubic root of 2318578049 is about 1323.5506732866.

The spelling of 2318578049 in words is "two billion, three hundred eighteen million, five hundred seventy-eight thousand, forty-nine".