1281827360836 has 48 divisors (see below), whose sum is σ = 2451643951680. Its totient is φ = 581573457920.

The previous prime is 1281827360783. The next prime is 1281827360851. The reversal of 1281827360836 is 6380637281821.

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

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, 125750556 + ... + 125760748.

It is an arithmetic number, because the mean of its divisors is an integer number (51075915660).

Almost surely, 2^{1281827360836} is an apocalyptic number.

It is an amenable number.

1281827360836 is a deficient number, since it is larger than the sum of its proper divisors (1169816590844).

1281827360836 is a wasteful number, since it uses less digits than its factorization.

1281827360836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15204 (or 15202 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 55.

The spelling of 1281827360836 in words is "one trillion, two hundred eighty-one billion, eight hundred twenty-seven million, three hundred sixty thousand, eight hundred thirty-six".