2971630856805 has 32 divisors (see below), whose sum is σ = 5296912306560. Its totient is φ = 1412509943040.

The previous prime is 2971630856801. The next prime is 2971630856881. The reversal of 2971630856805 is 5086580361792.

It is not a de Polignac number, because 2971630856805 - 2² = 2971630856801 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2971630856801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 262738011 + ... + 262749320.

It is an arithmetic number, because the mean of its divisors is an integer number (165528509580).

Almost surely, 2^{2971630856805} is an apocalyptic number.

It is an amenable number.

2971630856805 is a deficient number, since it is larger than the sum of its proper divisors (2325281449755).

2971630856805 is a wasteful number, since it uses less digits than its factorization.

2971630856805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525487381.

The product of its (nonzero) digits is 21772800, while the sum is 60.

The spelling of 2971630856805 in words is "two trillion, nine hundred seventy-one billion, six hundred thirty million, eight hundred fifty-six thousand, eight hundred five".