48691518 has 16 divisors (see below), whose sum is σ = 99758736. Its totient is φ = 15834560.

The previous prime is 48691507. The next prime is 48691537. The reversal of 48691518 is 81519684.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 48691518.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98721 + ... + 99212.

It is an arithmetic number, because the mean of its divisors is an integer number (6234921).

Almost surely, 2^48691518 is an apocalyptic number.

48691518 is an abundant number, since it is smaller than the sum of its proper divisors (51067218).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

48691518 is a wasteful number, since it uses less digits than its factorization.

48691518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197979.

The product of its digits is 69120, while the sum is 42.

The square root of 48691518 is about 6977.9307821159. The cubic root of 48691518 is about 365.1610423404.

The spelling of 48691518 in words is "forty-eight million, six hundred ninety-one thousand, five hundred eighteen".