4487533539840 has 400 divisors, whose sum is σ = 17309316617208. Its totient is φ = 1104622977024.

The previous prime is 4487533539829. The next prime is 4487533539869. The reversal of 4487533539840 is 489353357844.

It is a happy number.

4487533539840 is a `hidden beast` number, since 4 + 4 + 8 + 7 + 53 + 3 + 539 + 8 + 40 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1805432944896 + 2682100594944 = 1343664^2 + 1637712^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1863324 + ... + 3528036.

Almost surely, 2^{4487533539840} is an apocalyptic number.

4487533539840 is a gapful number since it is divisible by the number (40) 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 4487533539840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8654658308604).

4487533539840 is an abundant number, since it is smaller than the sum of its proper divisors (12821783077368).

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

4487533539840 is a wasteful number, since it uses less digits than its factorization.

4487533539840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1664761 (or 1664736 counting only the distinct ones).

The product of its (nonzero) digits is 174182400, while the sum is 63.

The spelling of 4487533539840 in words is "four trillion, four hundred eighty-seven billion, five hundred thirty-three million, five hundred thirty-nine thousand, eight hundred forty".