148487979648 has 128 divisors (see below), whose sum is σ = 397004400000. Its totient is φ = 49172631552.

The previous prime is 148487979631. The next prime is 148487979709. The reversal of 148487979648 is 846979784841.

It is a tau number, because it is divible by the number of its divisors (128).

It is a self number, because there is not a number n which added to its sum of digits gives 148487979648.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76185778 + ... + 76187726.

It is an arithmetic number, because the mean of its divisors is an integer number (3101596875).

Almost surely, 2^148487979648 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 148487979648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (198502200000).

148487979648 is an abundant number, since it is smaller than the sum of its proper divisors (248516420352).

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

148487979648 is a wasteful number, since it uses less digits than its factorization.

148487979648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3162 (or 3150 counting only the distinct ones).

The product of its digits is 780337152, while the sum is 75.

The spelling of 148487979648 in words is "one hundred forty-eight billion, four hundred eighty-seven million, nine hundred seventy-nine thousand, six hundred forty-eight".