48507450138 has 36 divisors (see below), whose sum is σ = 122258575530. Its totient is φ = 13859271216.

The previous prime is 48507450137. The next prime is 48507450139. The reversal of 48507450138 is 83105470584.

48507450138 is a `hidden beast` number, since 4 + 8 + 507 + 4 + 5 + 0 + 138 = 666.

48507450138 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 (48507450137) and next prime (48507450139).

It can be written as a sum of positive squares in only one way, i.e., 25051608729 + 23455841409 = 158277^2 + 153153^2 .

It is a junction number, because it is equal to n+sod(n) for n = 48507450093 and 48507450102.

It is not an unprimeable number, because it can be changed into a prime (48507450137) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 27497673 + ... + 27499436.

Almost surely, 2^48507450138 is an apocalyptic number.

48507450138 is an abundant number, since it is smaller than the sum of its proper divisors (73751125392).

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

48507450138 is a wasteful number, since it uses less digits than its factorization.

48507450138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54997131 (or 54997121 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 45.

The spelling of 48507450138 in words is "forty-eight billion, five hundred seven million, four hundred fifty thousand, one hundred thirty-eight".