1273250451456 has 273 divisors, whose sum is σ = 3823393825069. Its totient is φ = 423766867968.

The previous prime is 1273250451367. The next prime is 1273250451491. The reversal of 1273250451456 is 6541540523721.

The square root of 1273250451456 is 1128384.

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

1273250451456 is a `hidden beast` number, since 1 + 2 + 7 + 32 + 50 + 4 + 514 + 56 = 666.

It can be written as a sum of positive squares in only one way, i.e., 296284262400 + 976966189056 = 544320^2 + 988416^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 1949847226 + ... + 1949847878.

Almost surely, 2^{1273250451456} is an apocalyptic number.

1273250451456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

1273250451456 is the 1128384-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1273250451456

1273250451456 is an abundant number, since it is smaller than the sum of its proper divisors (2550143373613).

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

1273250451456 is an frugal number, since it uses more digits than its factorization.

1273250451456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1348 (or 658 counting only the distinct ones).

The product of its (nonzero) digits is 1008000, while the sum is 45.

The spelling of 1273250451456 in words is "one trillion, two hundred seventy-three billion, two hundred fifty million, four hundred fifty-one thousand, four hundred fifty-six".