48512904138 has 12 divisors (see below), whose sum is σ = 105111292338. Its totient is φ = 16170968040.

The previous prime is 48512904119. The next prime is 48512904157. The reversal of 48512904138 is 83140921584.

48512904138 is a `hidden beast` number, since 4 + 8 + 512 + 90 + 41 + 3 + 8 = 666.

48512904138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (48512904119) and next prime (48512904157).

It can be written as a sum of positive squares in only one way, i.e., 33028337169 + 15484566969 = 181737^2 + 124437^2 .

It is a junction number, because it is equal to n+sod(n) for n = 48512904093 and 48512904102.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1347580653 + ... + 1347580688.

Almost surely, 2^48512904138 is an apocalyptic number.

48512904138 is an abundant number, since it is smaller than the sum of its proper divisors (56598388200).

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

48512904138 is a wasteful number, since it uses less digits than its factorization.

48512904138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2695161349 (or 2695161346 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The spelling of 48512904138 in words is "forty-eight billion, five hundred twelve million, nine hundred four thousand, one hundred thirty-eight".