3525820869888 has 144 divisors (see below), whose sum is σ = 10486744779840. Its totient is φ = 1168479737856.

The previous prime is 3525820869871. The next prime is 3525820869943. The reversal of 3525820869888 is 8889680285253.

3525820869888 is a `hidden beast` number, since 3 + 5 + 258 + 208 + 6 + 98 + 88 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

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, 278506 + ... + 2670057.

Almost surely, 2^{3525820869888} 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 3525820869888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5243372389920).

3525820869888 is an abundant number, since it is smaller than the sum of its proper divisors (6960923909952).

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

3525820869888 is a wasteful number, since it uses less digits than its factorization.

3525820869888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2948761 (or 2948741 counting only the distinct ones).

The product of its (nonzero) digits is 530841600, while the sum is 72.

The spelling of 3525820869888 in words is "three trillion, five hundred twenty-five billion, eight hundred twenty million, eight hundred sixty-nine thousand, eight hundred eighty-eight".