1256770485152 has 288 divisors, whose sum is σ = 3368052334080. Its totient is φ = 455817922560.

The previous prime is 1256770485127. The next prime is 1256770485169. The reversal of 1256770485152 is 2515840776521.

It is a junction number, because it is equal to n+sod(n) for n = 1256770485094 and 1256770485103.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11953838 + ... + 12058514.

It is an arithmetic number, because the mean of its divisors is an integer number (11694626160).

Almost surely, 2^{1256770485152} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1256770485152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1684026167040).

1256770485152 is an abundant number, since it is smaller than the sum of its proper divisors (2111281848928).

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

1256770485152 is a wasteful number, since it uses less digits than its factorization.

1256770485152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104764 (or 104749 counting only the distinct ones).

The product of its (nonzero) digits is 4704000, while the sum is 53.

The spelling of 1256770485152 in words is "one trillion, two hundred fifty-six billion, seven hundred seventy million, four hundred eighty-five thousand, one hundred fifty-two".