1478274200649 has 27 divisors (see below), whose sum is σ = 2181936217773. Its totient is φ = 964435847832.

The previous prime is 1478274200621. The next prime is 1478274200671. The reversal of 1478274200649 is 9460024728741.

The square root of 1478274200649 is 1215843.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 1478274200649 - 2⁵ = 1478274200617 is a prime.

It is a super-2 number, since 2×1478274200649² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1478274200595 and 1478274200604.

It is not an unprimeable number, because it can be changed into a prime (1478274200609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 171429552 + ... + 171438174.

Almost surely, 2^{1478274200649} is an apocalyptic number.

1478274200649 is the 1215843-rd square number.

1478274200649 is the 607922-nd centered octagonal number.

It is an amenable number.

1478274200649 is a deficient number, since it is larger than the sum of its proper divisors (703662017124).

1478274200649 is an frugal number, since it uses more digits than its factorization.

1478274200649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17346 (or 8673 counting only the distinct ones).

The product of its (nonzero) digits is 5419008, while the sum is 54.

The spelling of 1478274200649 in words is "one trillion, four hundred seventy-eight billion, two hundred seventy-four million, two hundred thousand, six hundred forty-nine".