1985875488 has 96 divisors (see below), whose sum is σ = 5846541120. Its totient is φ = 655741440.

The previous prime is 1985875487. The next prime is 1985875501. The reversal of 1985875488 is 8845785891.

1985875488 is a `hidden beast` number, since 1 + 9 + 8 + 5 + 87 + 548 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (1985875481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81708 + ... + 103188.

It is an arithmetic number, because the mean of its divisors is an integer number (60901470).

Almost surely, 2^1985875488 is an apocalyptic number.

1985875488 is a gapful number since it is divisible by the number (18) 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 1985875488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2923270560).

1985875488 is an abundant number, since it is smaller than the sum of its proper divisors (3860665632).

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

1985875488 is a wasteful number, since it uses less digits than its factorization.

1985875488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21607 (or 21593 counting only the distinct ones).

The product of its digits is 25804800, while the sum is 63.

The square root of 1985875488 is about 44563.1629039053. The cubic root of 1985875488 is about 1256.9480785795.

The spelling of 1985875488 in words is "one billion, nine hundred eighty-five million, eight hundred seventy-five thousand, four hundred eighty-eight".