1285147041646 has 16 divisors (see below), whose sum is σ = 2076291567504. Its totient is φ = 593063414784.

The previous prime is 1285147041637. The next prime is 1285147041683. The reversal of 1285147041646 is 6461407415821.

It is a self number, because there is not a number n which added to its sum of digits gives 1285147041646.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3197200 + ... + 3576643.

It is an arithmetic number, because the mean of its divisors is an integer number (129768222969).

Almost surely, 2^{1285147041646} is an apocalyptic number.

1285147041646 is a deficient number, since it is larger than the sum of its proper divisors (791144525858).

1285147041646 is a wasteful number, since it uses less digits than its factorization.

1285147041646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6781155.

The product of its (nonzero) digits is 1290240, while the sum is 49.

The spelling of 1285147041646 in words is "one trillion, two hundred eighty-five billion, one hundred forty-seven million, forty-one thousand, six hundred forty-six".