549305353872 has 320 divisors, whose sum is σ = 1746788198400. Its totient is φ = 163887736320.

The previous prime is 549305353871. The next prime is 549305353903. The reversal of 549305353872 is 278353503945.

549305353872 is a `hidden beast` number, since 5 + 4 + 9 + 3 + 0 + 535 + 38 + 72 = 666.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (549305353871) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 84910254 + ... + 84916722.

It is an arithmetic number, because the mean of its divisors is an integer number (5458713120).

Almost surely, 2^549305353872 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 549305353872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (873394099200).

549305353872 is an abundant number, since it is smaller than the sum of its proper divisors (1197482844528).

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

549305353872 is a wasteful number, since it uses less digits than its factorization.

549305353872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6771 (or 6759 counting only the distinct ones).

The product of its (nonzero) digits is 13608000, while the sum is 54.

The spelling of 549305353872 in words is "five hundred forty-nine billion, three hundred five million, three hundred fifty-three thousand, eight hundred seventy-two".