2548278742 has 4 divisors (see below), whose sum is σ = 3822418116. Its totient is φ = 1274139370.

The previous prime is 2548278739. The next prime is 2548278751. The reversal of 2548278742 is 2478728452.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 637069684 + ... + 637069687.

It is an arithmetic number, because the mean of its divisors is an integer number (955604529).

Almost surely, 2^2548278742 is an apocalyptic number.

2548278742 is a deficient number, since it is larger than the sum of its proper divisors (1274139374).

2548278742 is a wasteful number, since it uses less digits than its factorization.

2548278742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1274139373.

The product of its digits is 2007040, while the sum is 49.

The square root of 2548278742 is about 50480.4788210255. The cubic root of 2548278742 is about 1365.8897430564.

The spelling of 2548278742 in words is "two billion, five hundred forty-eight million, two hundred seventy-eight thousand, seven hundred forty-two".