549078387453 has 12 divisors (see below), whose sum is σ = 793121603040. Its totient is φ = 366048392136.

The previous prime is 549078387439. The next prime is 549078387461. The reversal of 549078387453 is 354783870945.

549078387453 is a `hidden beast` number, since 5 + 490 + 78 + 3 + 8 + 74 + 5 + 3 = 666.

It is not a de Polignac number, because 549078387453 - 2⁴ = 549078387437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (549078387433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 773350 + ... + 1302392.

It is an arithmetic number, because the mean of its divisors is an integer number (66093466920).

Almost surely, 2^549078387453 is an apocalyptic number.

It is an amenable number.

549078387453 is a deficient number, since it is larger than the sum of its proper divisors (244043215587).

549078387453 is a wasteful number, since it uses less digits than its factorization.

549078387453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644368 (or 644365 counting only the distinct ones).

The product of its (nonzero) digits is 101606400, while the sum is 63.

The spelling of 549078387453 in words is "five hundred forty-nine billion, seventy-eight million, three hundred eighty-seven thousand, four hundred fifty-three".