48147778 has 16 divisors (see below), whose sum is σ = 83004480. Its totient is φ = 20518416.

The previous prime is 48147773. The next prime is 48147821. The reversal of 48147778 is 87774184.

It is not an unprimeable number, because it can be changed into a prime (48147773) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7101 + ... + 12112.

It is an arithmetic number, because the mean of its divisors is an integer number (5187780).

Almost surely, 2^48147778 is an apocalyptic number.

48147778 is a deficient number, since it is larger than the sum of its proper divisors (34856702).

48147778 is a wasteful number, since it uses less digits than its factorization.

48147778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19401.

The product of its digits is 351232, while the sum is 46.

The square root of 48147778 is about 6938.8599928230. The cubic root of 48147778 is about 363.7966954299.

The spelling of 48147778 in words is "forty-eight million, one hundred forty-seven thousand, seven hundred seventy-eight".