1047678511071 has 4 divisors (see below), whose sum is σ = 1396904681432. Its totient is φ = 698452340712.

The previous prime is 1047678511069. The next prime is 1047678511079. The reversal of 1047678511071 is 1701158767401.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1047678511071 - 2¹ = 1047678511069 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1047678511071.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1047678511079) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174613085176 + ... + 174613085181.

It is an arithmetic number, because the mean of its divisors is an integer number (349226170358).

Almost surely, 2^{1047678511071} is an apocalyptic number.

1047678511071 is a deficient number, since it is larger than the sum of its proper divisors (349226170361).

1047678511071 is an equidigital number, since it uses as much as digits as its factorization.

1047678511071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349226170360.

The product of its (nonzero) digits is 329280, while the sum is 48.

The spelling of 1047678511071 in words is "one trillion, forty-seven billion, six hundred seventy-eight million, five hundred eleven thousand, seventy-one".