1285013782004 has 72 divisors (see below), whose sum is σ = 2452587879168. Its totient is φ = 588414119040.

The previous prime is 1285013781991. The next prime is 1285013782027. The reversal of 1285013782004 is 4002873105821.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42376352 + ... + 42406664.

It is an arithmetic number, because the mean of its divisors is an integer number (34063720544).

Almost surely, 2^{1285013782004} is an apocalyptic number.

It is an amenable number.

1285013782004 is a deficient number, since it is larger than the sum of its proper divisors (1167574097164).

1285013782004 is a wasteful number, since it uses less digits than its factorization.

1285013782004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31333 (or 31312 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 41.

Adding to 1285013782004 its reverse (4002873105821), we get a palindrome (5287886887825).

The spelling of 1285013782004 in words is "one trillion, two hundred eighty-five billion, thirteen million, seven hundred eighty-two thousand, four".