201671894674 has 16 divisors (see below), whose sum is σ = 323649463680. Its totient is φ = 93962745360.

The previous prime is 201671894651. The next prime is 201671894737. The reversal of 201671894674 is 476498176102.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43498954 + ... + 43503589.

It is an arithmetic number, because the mean of its divisors is an integer number (20228091480).

Almost surely, 2^201671894674 is an apocalyptic number.

201671894674 is a deficient number, since it is larger than the sum of its proper divisors (121977569006).

201671894674 is a wasteful number, since it uses less digits than its factorization.

201671894674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87002625.

The product of its (nonzero) digits is 4064256, while the sum is 55.

The spelling of 201671894674 in words is "two hundred one billion, six hundred seventy-one million, eight hundred ninety-four thousand, six hundred seventy-four".