4072197361621 has 8 divisors (see below), whose sum is σ = 4118263781184. Its totient is φ = 4026367788000.

The previous prime is 4072197361619. The next prime is 4072197361627. The reversal of 4072197361621 is 1261637912704.

4072197361621 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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 4072197361621 - 2¹ = 4072197361619 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4072197361627) 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, 59176905 + ... + 59245678.

It is an arithmetic number, because the mean of its divisors is an integer number (514782972648).

Almost surely, 2^{4072197361621} is an apocalyptic number.

It is an amenable number.

4072197361621 is a deficient number, since it is larger than the sum of its proper divisors (46066419563).

4072197361621 is a wasteful number, since it uses less digits than its factorization.

4072197361621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118422971.

The product of its (nonzero) digits is 762048, while the sum is 49.

The spelling of 4072197361621 in words is "four trillion, seventy-two billion, one hundred ninety-seven million, three hundred sixty-one thousand, six hundred twenty-one".