1285322447040 has 112 divisors (see below), whose sum is σ = 4141807913472. Its totient is φ = 337636924416.

The previous prime is 1285322447011. The next prime is 1285322447053. The reversal of 1285322447040 is 407442235821.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1285322446983 and 1285322447001.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9927304 + ... + 10055943.

Almost surely, 2^{1285322447040} is an apocalyptic number.

1285322447040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1285322447040 is an abundant number, since it is smaller than the sum of its proper divisors (2856485466432).

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

1285322447040 is a wasteful number, since it uses less digits than its factorization.

1285322447040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19983334 (or 19983324 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 42.

The spelling of 1285322447040 in words is "one trillion, two hundred eighty-five billion, three hundred twenty-two million, four hundred forty-seven thousand, forty".