48559571618 has 4 divisors (see below), whose sum is σ = 72839357430. Its totient is φ = 24279785808.

The previous prime is 48559571597. The next prime is 48559571713. The reversal of 48559571618 is 81617595584.

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., 42945516289 + 5614055329 = 207233^2 + 74927^2 .

It is a super-2 number, since 2×48559571618² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12139892903 + ... + 12139892906.

Almost surely, 2^48559571618 is an apocalyptic number.

48559571618 is a deficient number, since it is larger than the sum of its proper divisors (24279785812).

48559571618 is a wasteful number, since it uses less digits than its factorization.

48559571618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24279785811.

The product of its digits is 12096000, while the sum is 59.

The spelling of 48559571618 in words is "forty-eight billion, five hundred fifty-nine million, five hundred seventy-one thousand, six hundred eighteen".