48621997648 has 20 divisors (see below), whose sum is σ = 107662995040. Its totient is φ = 20837998944.

The previous prime is 48621997643. The next prime is 48621997663. The reversal of 48621997648 is 84679912684.

It is a self number, because there is not a number n which added to its sum of digits gives 48621997648.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48621997643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 217062378 + ... + 217062601.

It is an arithmetic number, because the mean of its divisors is an integer number (5383149752).

Almost surely, 2^48621997648 is an apocalyptic number.

It is an amenable number.

48621997648 is an abundant number, since it is smaller than the sum of its proper divisors (59040997392).

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

48621997648 is a wasteful number, since it uses less digits than its factorization.

48621997648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434124994 (or 434124988 counting only the distinct ones).

The product of its digits is 41803776, while the sum is 64.

The spelling of 48621997648 in words is "forty-eight billion, six hundred twenty-one million, nine hundred ninety-seven thousand, six hundred forty-eight".