2971698971648 has 44 divisors (see below), whose sum is σ = 6480540999312. Its totient is φ = 1350772254720.

The previous prime is 2971698971629. The next prime is 2971698971669. The reversal of 2971698971648 is 8461798961792.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (44).

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 131900090 + ... + 131922617.

Almost surely, 2^{2971698971648} is an apocalyptic number.

It is an amenable number.

2971698971648 is an abundant number, since it is smaller than the sum of its proper divisors (3508842027664).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2971698971648 is a wasteful number, since it uses less digits than its factorization.

2971698971648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263822738 (or 263822720 counting only the distinct ones).

The product of its digits is 658409472, while the sum is 77.

The spelling of 2971698971648 in words is "two trillion, nine hundred seventy-one billion, six hundred ninety-eight million, nine hundred seventy-one thousand, six hundred forty-eight".