549634428000 has 576 divisors, whose sum is σ = 2281206799872. Its totient is φ = 122706662400.

The previous prime is 549634427987. The next prime is 549634428001. The reversal of 549634428000 is 824436945.

549634428000 is a `hidden beast` number, since 5 + 4 + 9 + 634 + 4 + 2 + 8 + 0 + 0 + 0 = 666.

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

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (549634428001) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 10810639 + ... + 10861361.

It is an arithmetic number, because the mean of its divisors is an integer number (3960428472).

Almost surely, 2^549634428000 is an apocalyptic number.

549634428000 is a gapful number since it is divisible by the number (50) 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 549634428000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1140603399936).

549634428000 is an abundant number, since it is smaller than the sum of its proper divisors (1731572371872).

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

549634428000 is a wasteful number, since it uses less digits than its factorization.

549634428000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50804 (or 50783 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 45.

The spelling of 549634428000 in words is "five hundred forty-nine billion, six hundred thirty-four million, four hundred twenty-eight thousand".