2458348778 has 4 divisors (see below), whose sum is σ = 3687523170. Its totient is φ = 1229174388.

The previous prime is 2458348777. The next prime is 2458348793. The reversal of 2458348778 is 8778438542.

2458348778 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1539228289 + 919120489 = 39233^2 + 30317^2 .

It is not an unprimeable number, because it can be changed into a prime (2458348777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 614587193 + ... + 614587196.

Almost surely, 2^2458348778 is an apocalyptic number.

2458348778 is a deficient number, since it is larger than the sum of its proper divisors (1229174392).

2458348778 is a wasteful number, since it uses less digits than its factorization.

2458348778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1229174391.

The product of its digits is 12042240, while the sum is 56.

The square root of 2458348778 is about 49581.7383519376. The cubic root of 2458348778 is about 1349.6293043473.

The spelling of 2458348778 in words is "two billion, four hundred fifty-eight million, three hundred forty-eight thousand, seven hundred seventy-eight".