1257244482560 has 352 divisors, whose sum is σ = 3469655174400. Its totient is φ = 432317399040.

The previous prime is 1257244482521. The next prime is 1257244482569. The reversal of 1257244482560 is 652844427521.

It is a tau number, because it is divible by the number of its divisors (352).

It is a junction number, because it is equal to n+sod(n) for n = 1257244482499 and 1257244482508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1257244482569) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1090410944 + ... + 1090412096.

Almost surely, 2^{1257244482560} is an apocalyptic number.

1257244482560 is a gapful number since it is divisible by the number (10) 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 1257244482560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1734827587200).

1257244482560 is an abundant number, since it is smaller than the sum of its proper divisors (2212410691840).

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

1257244482560 is a wasteful number, since it uses less digits than its factorization.

1257244482560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2227 (or 2209 counting only the distinct ones).

The product of its (nonzero) digits is 4300800, while the sum is 50.

The spelling of 1257244482560 in words is "one trillion, two hundred fifty-seven billion, two hundred forty-four million, four hundred eighty-two thousand, five hundred sixty".