1390646805633 has 24 divisors (see below), whose sum is σ = 2011754908800. Its totient is φ = 925693838784.

The previous prime is 1390646805571. The next prime is 1390646805689. The reversal of 1390646805633 is 3365086460931.

1390646805633 is a `hidden beast` number, since 1 + 39 + 0 + 6 + 46 + 8 + 0 + 563 + 3 = 666.

It is not a de Polignac number, because 1390646805633 - 2¹⁴ = 1390646789249 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1390646805633.

It is not an unprimeable number, because it can be changed into a prime (1390646803633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 80660028 + ... + 80677266.

It is an arithmetic number, because the mean of its divisors is an integer number (83823121200).

Almost surely, 2^{1390646805633} is an apocalyptic number.

It is an amenable number.

1390646805633 is a deficient number, since it is larger than the sum of its proper divisors (621108103167).

1390646805633 is a wasteful number, since it uses less digits than its factorization.

1390646805633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30301 (or 30298 counting only the distinct ones).

The product of its (nonzero) digits is 8398080, while the sum is 54.

The spelling of 1390646805633 in words is "one trillion, three hundred ninety billion, six hundred forty-six million, eight hundred five thousand, six hundred thirty-three".