1071671983647 has 16 divisors (see below), whose sum is σ = 1506538844160. Its totient is φ = 675748446912.

The previous prime is 1071671983639. The next prime is 1071671983727. The reversal of 1071671983647 is 7463891761701.

It is a happy number.

It is not a de Polignac number, because 1071671983647 - 2³ = 1071671983639 is a prime.

It is a super-2 number, since 2×1071671983647² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1071671985647) 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, 15200863 + ... + 15271200.

It is an arithmetic number, because the mean of its divisors is an integer number (94158677760).

Almost surely, 2^{1071671983647} is an apocalyptic number.

1071671983647 is a deficient number, since it is larger than the sum of its proper divisors (434866860513).

1071671983647 is a wasteful number, since it uses less digits than its factorization.

1071671983647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30472702.

The product of its (nonzero) digits is 10668672, while the sum is 60.

The spelling of 1071671983647 in words is "one trillion, seventy-one billion, six hundred seventy-one million, nine hundred eighty-three thousand, six hundred forty-seven".