1244545510464 has 567 divisors, whose sum is σ = 3900806230503. Its totient is φ = 379336978944.

The previous prime is 1244545510459. The next prime is 1244545510489. The reversal of 1244545510464 is 4640155454421.

The square root of 1244545510464 is 1115592.

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

1244545510464 is a `hidden beast` number, since 1 + 2 + 4 + 4 + 54 + 551 + 0 + 46 + 4 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 26479691689 + ... + 26479691735.

Almost surely, 2^{1244545510464} is an apocalyptic number.

1244545510464 is the 1115592-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1244545510464

1244545510464 is an abundant number, since it is smaller than the sum of its proper divisors (2656260720039).

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

1244545510464 is an equidigital number, since it uses as much as digits as its factorization.

1244545510464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244 (or 118 counting only the distinct ones).

The product of its (nonzero) digits is 1536000, while the sum is 45.

The spelling of 1244545510464 in words is "one trillion, two hundred forty-four billion, five hundred forty-five million, five hundred ten thousand, four hundred sixty-four".