1294275353280 has 1344 divisors, whose sum is σ = 5298920202240. Its totient is φ = 265203154944.

The previous prime is 1294275353251. The next prime is 1294275353309. The reversal of 1294275353280 is 823535724921.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1294275353251) and next prime (1294275353309).

It is a tau number, because it is divible by the number of its divisors (1344).

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 3526635657 + ... + 3526636023.

It is an arithmetic number, because the mean of its divisors is an integer number (3942648960).

Almost surely, 2^{1294275353280} is an apocalyptic number.

1294275353280 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 1294275353280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2649460101120).

1294275353280 is an abundant number, since it is smaller than the sum of its proper divisors (4004644848960).

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

1294275353280 is a wasteful number, since it uses less digits than its factorization.

1294275353280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566 (or 549 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 51.

The spelling of 1294275353280 in words is "one trillion, two hundred ninety-four billion, two hundred seventy-five million, three hundred fifty-three thousand, two hundred eighty".