488778278 has 4 divisors (see below), whose sum is σ = 733167420. Its totient is φ = 244389138.

The previous prime is 488778263. The next prime is 488778281. The reversal of 488778278 is 872877884.

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 polite number, since it can be written as a sum of consecutive naturals, namely, 122194568 + ... + 122194571.

It is an arithmetic number, because the mean of its divisors is an integer number (183291855).

Almost surely, 2^488778278 is an apocalyptic number.

488778278 is a deficient number, since it is larger than the sum of its proper divisors (244389142).

488778278 is a wasteful number, since it uses less digits than its factorization.

488778278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244389141.

The product of its digits is 11239424, while the sum is 59.

The square root of 488778278 is about 22108.3305113706. The cubic root of 488778278 is about 787.7177510885.

The spelling of 488778278 in words is "four hundred eighty-eight million, seven hundred seventy-eight thousand, two hundred seventy-eight".