3549401856000 has 5376 divisors, whose sum is σ = 18768429388800. Its totient is φ = 644972544000.

The previous prime is 3549401855983. The next prime is 3549401856023. The reversal of 3549401856000 is 6581049453.

3549401856000 is a `hidden beast` number, since 3 + 5 + 49 + 40 + 1 + 8 + 560 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (5376).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 447 ways as a sum of consecutive naturals, for example, 186810623991 + ... + 186810624009.

It is an arithmetic number, because the mean of its divisors is an integer number (3491151300).

Almost surely, 2^{3549401856000} is an apocalyptic number.

3549401856000 is a gapful number since it is divisible by the number (30) 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 3549401856000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9384214694400).

3549401856000 is an abundant number, since it is smaller than the sum of its proper divisors (15219027532800).

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

3549401856000 is a wasteful number, since it uses less digits than its factorization.

3549401856000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105 (or 60 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 45.

The spelling of 3549401856000 in words is "three trillion, five hundred forty-nine billion, four hundred one million, eight hundred fifty-six thousand".