1275449366352 has 640 divisors, whose sum is σ = 4045112524800. Its totient is φ = 338775810048.

The previous prime is 1275449366339. The next prime is 1275449366407. The reversal of 1275449366352 is 2536639445721.

It is a super-2 number, since 2×1275449366352² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1275449366292 and 1275449366301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 5569647774 + ... + 5569648002.

It is an arithmetic number, because the mean of its divisors is an integer number (6320488320).

Almost surely, 2^{1275449366352} is an apocalyptic number.

1275449366352 is a gapful number since it is divisible by the number (12) 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 1275449366352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2022556262400).

1275449366352 is an abundant number, since it is smaller than the sum of its proper divisors (2769663158448).

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

1275449366352 is a wasteful number, since it uses less digits than its factorization.

1275449366352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 523 (or 517 counting only the distinct ones).

The product of its digits is 32659200, while the sum is 57.

The spelling of 1275449366352 in words is "one trillion, two hundred seventy-five billion, four hundred forty-nine million, three hundred sixty-six thousand, three hundred fifty-two".