48535578513 has 56 divisors (see below), whose sum is σ = 75392866560. Its totient is φ = 31198517280.

The previous prime is 48535578503. The next prime is 48535578517. The reversal of 48535578513 is 31587553584.

48535578513 is a `hidden beast` number, since 4 + 8 + 5 + 3 + 55 + 78 + 513 = 666.

48535578513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 48535578513 - 2⁶ = 48535578449 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 48535578513.

It is not an unprimeable number, because it can be changed into a prime (48535578517) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 6391723 + ... + 6399311.

Almost surely, 2^48535578513 is an apocalyptic number.

It is an amenable number.

48535578513 is a deficient number, since it is larger than the sum of its proper divisors (26857288047).

48535578513 is an equidigital number, since it uses as much as digits as its factorization.

48535578513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7921 (or 7906 counting only the distinct ones).

The product of its digits is 10080000, while the sum is 54.

The spelling of 48535578513 in words is "forty-eight billion, five hundred thirty-five million, five hundred seventy-eight thousand, five hundred thirteen".