3249801636536 has 128 divisors (see below), whose sum is σ = 7742787010560. Its totient is φ = 1243950912000.

The previous prime is 3249801636511. The next prime is 3249801636541. The reversal of 3249801636536 is 6356361089423.

It is a happy number.

It is a super-2 number, since 2×3249801636536² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 215539430 + ... + 215554506.

It is an arithmetic number, because the mean of its divisors is an integer number (60490523520).

Almost surely, 2^{3249801636536} 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 3249801636536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3871393505280).

3249801636536 is an abundant number, since it is smaller than the sum of its proper divisors (4492985374024).

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

3249801636536 is a wasteful number, since it uses less digits than its factorization.

3249801636536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24685 (or 24681 counting only the distinct ones).

The product of its (nonzero) digits is 16796160, while the sum is 56.

The spelling of 3249801636536 in words is "three trillion, two hundred forty-nine billion, eight hundred one million, six hundred thirty-six thousand, five hundred thirty-six".