1287208416396 has 48 divisors (see below), whose sum is σ = 3432886311680. Its totient is φ = 367738418880.

The previous prime is 1287208416359. The next prime is 1287208416419. The reversal of 1287208416396 is 6936148027821.

It is a happy number.

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, 145986 + ... + 1611126.

Almost surely, 2^{1287208416396} is an apocalyptic number.

It is an amenable number.

1287208416396 is an abundant number, since it is smaller than the sum of its proper divisors (2145677895284).

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

1287208416396 is a wasteful number, since it uses less digits than its factorization.

1287208416396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1475614 (or 1475612 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 57.

The spelling of 1287208416396 in words is "one trillion, two hundred eighty-seven billion, two hundred eight million, four hundred sixteen thousand, three hundred ninety-six".