1286265287328 has 48 divisors (see below), whose sum is σ = 3858795864000. Its totient is φ = 367504367616.

The previous prime is 1286265287309. The next prime is 1286265287387. The reversal of 1286265287328 is 8237825626821.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-3 number, since 3×1286265287328³ (a number of 37 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 957041953 + ... + 957043296.

It is an arithmetic number, because the mean of its divisors is an integer number (80391580500).

Almost surely, 2^{1286265287328} is an apocalyptic number.

It is an amenable number.

1286265287328 is an abundant number, since it is smaller than the sum of its proper divisors (2572530576672).

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

1286265287328 is a wasteful number, since it uses less digits than its factorization.

1286265287328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1914085269 (or 1914085261 counting only the distinct ones).

The product of its digits is 30965760, while the sum is 60.

The spelling of 1286265287328 in words is "one trillion, two hundred eighty-six billion, two hundred sixty-five million, two hundred eighty-seven thousand, three hundred twenty-eight".