3921163537697 has 8 divisors (see below), whose sum is σ = 4507233398976. Its totient is φ = 3341569586832.

The previous prime is 3921163537673. The next prime is 3921163537717. The reversal of 3921163537697 is 7967353611293.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3921163537697 - 2¹² = 3921163533601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3921163539697) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1618976303 + ... + 1618978724.

It is an arithmetic number, because the mean of its divisors is an integer number (563404174872).

Almost surely, 2^{3921163537697} is an apocalyptic number.

It is an amenable number.

3921163537697 is a deficient number, since it is larger than the sum of its proper divisors (586069861279).

3921163537697 is a wasteful number, since it uses less digits than its factorization.

3921163537697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3237955207.

The product of its digits is 38578680, while the sum is 62.

The spelling of 3921163537697 in words is "three trillion, nine hundred twenty-one billion, one hundred sixty-three million, five hundred thirty-seven thousand, six hundred ninety-seven".