148685887440 has 480 divisors, whose sum is σ = 531496982016. Its totient is φ = 38612090880.

The previous prime is 148685887421. The next prime is 148685887447. The reversal of 148685887440 is 44788586841.

148685887440 is a `hidden beast` number, since 1 + 4 + 8 + 6 + 8 + 588 + 7 + 4 + 40 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148685887447) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 322528810 + ... + 322529270.

Almost surely, 2^148685887440 is an apocalyptic number.

148685887440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 148685887440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (265748491008).

148685887440 is an abundant number, since it is smaller than the sum of its proper divisors (382811094576).

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

148685887440 is a wasteful number, since it uses less digits than its factorization.

148685887440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 889 (or 871 counting only the distinct ones).

The product of its (nonzero) digits is 55050240, while the sum is 63.

The spelling of 148685887440 in words is "one hundred forty-eight billion, six hundred eighty-five million, eight hundred eighty-seven thousand, four hundred forty".