273453849446400 has 864 divisors, whose sum is σ = 1178145590731200. Its totient is φ = 59214053376000.

The previous prime is 273453849446363. The next prime is 273453849446429. The reversal of 273453849446400 is 4644948354372.

273453849446400 is a `hidden beast` number, since 2 + 7 + 3 + 4 + 5 + 3 + 84 + 94 + 464 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 59055450 + ... + 63517350.

Almost surely, 2^{273453849446400} is an apocalyptic number.

273453849446400 is a gapful number since it is divisible by the number (20) 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 273453849446400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (589072795365600).

273453849446400 is an abundant number, since it is smaller than the sum of its proper divisors (904691741284800).

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

273453849446400 is a wasteful number, since it uses less digits than its factorization.

273453849446400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4461965 (or 4461937 counting only the distinct ones).

The product of its (nonzero) digits is 278691840, while the sum is 63.

The spelling of 273453849446400 in words is "two hundred seventy-three trillion, four hundred fifty-three billion, eight hundred forty-nine million, four hundred forty-six thousand, four hundred".