48136621617 has 18 divisors (see below), whose sum is σ = 80882623458. Its totient is φ = 27506640672.

The previous prime is 48136621583. The next prime is 48136621669. The reversal of 48136621617 is 71612663184.

48136621617 is a `hidden beast` number, since 4 + 8 + 1 + 3 + 6 + 6 + 21 + 617 = 666.

It can be written as a sum of positive squares in only one way, i.e., 27237871521 + 20898750096 = 165039^2 + 144564^2 .

It is not a de Polignac number, because 48136621617 - 2⁶ = 48136621553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (48136621697) by changing a digit.

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 17 ways as a sum of consecutive naturals, for example, 54576228 + ... + 54577109.

It is an arithmetic number, because the mean of its divisors is an integer number (4493479081).

Almost surely, 2^48136621617 is an apocalyptic number.

It is an amenable number.

48136621617 is a deficient number, since it is larger than the sum of its proper divisors (32746001841).

48136621617 is a wasteful number, since it uses less digits than its factorization.

48136621617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109153357 (or 109153347 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The spelling of 48136621617 in words is "forty-eight billion, one hundred thirty-six million, six hundred twenty-one thousand, six hundred seventeen".