4097329821856 has 12 divisors (see below), whose sum is σ = 8066618086842. Its totient is φ = 2048664910912.

The previous prime is 4097329821841. The next prime is 4097329821887. The reversal of 4097329821856 is 6581289237904.

It can be written as a sum of positive squares in only one way, i.e., 3994737731856 + 102592090000 = 1998684^2 + 320300^2 .

It is a super-2 number, since 2×4097329821856² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64020778435 + ... + 64020778498.

It is a 1-persistent number, because it is pandigital, but 2⋅4097329821856 = 8194659643712 is not.

Almost surely, 2^{4097329821856} is an apocalyptic number.

It is an amenable number.

4097329821856 is a deficient number, since it is larger than the sum of its proper divisors (3969288264986).

4097329821856 is a wasteful number, since it uses less digits than its factorization.

4097329821856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128041556943 (or 128041556935 counting only the distinct ones).

The product of its (nonzero) digits is 52254720, while the sum is 64.

The spelling of 4097329821856 in words is "four trillion, ninety-seven billion, three hundred twenty-nine million, eight hundred twenty-one thousand, eight hundred fifty-six".