1047776706821 has 16 divisors (see below), whose sum is σ = 1132267071936. Its totient is φ = 963847454976.

The previous prime is 1047776706811. The next prime is 1047776706841. The reversal of 1047776706821 is 1286076777401.

It is a cyclic number.

It is not a de Polignac number, because 1047776706821 - 2¹⁰ = 1047776705797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1047776706811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4865006 + ... + 5075808.

It is an arithmetic number, because the mean of its divisors is an integer number (70766691996).

Almost surely, 2^{1047776706821} is an apocalyptic number.

It is an amenable number.

1047776706821 is a deficient number, since it is larger than the sum of its proper divisors (84490365115).

1047776706821 is a wasteful number, since it uses less digits than its factorization.

1047776706821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212132.

The product of its (nonzero) digits is 5531904, while the sum is 56.

The spelling of 1047776706821 in words is "one trillion, forty-seven billion, seven hundred seventy-six million, seven hundred six thousand, eight hundred twenty-one".