1287841388236 has 48 divisors (see below), whose sum is σ = 2443860064800. Its totient is φ = 593800898496.

The previous prime is 1287841388213. The next prime is 1287841388279. The reversal of 1287841388236 is 6328831487821.

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, 8883066 + ... + 9026878.

It is an arithmetic number, because the mean of its divisors is an integer number (50913751350).

Almost surely, 2^{1287841388236} is an apocalyptic number.

It is an amenable number.

1287841388236 is a deficient number, since it is larger than the sum of its proper divisors (1156018676564).

1287841388236 is a wasteful number, since it uses less digits than its factorization.

1287841388236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144875 (or 144847 counting only the distinct ones).

The product of its digits is 24772608, while the sum is 61.

The spelling of 1287841388236 in words is "one trillion, two hundred eighty-seven billion, eight hundred forty-one million, three hundred eighty-eight thousand, two hundred thirty-six".