4072197361620 has 48 divisors (see below), whose sum is σ = 11402277828480. Its totient is φ = 1085907371136.

The previous prime is 4072197361619. The next prime is 4072197361627. The reversal of 4072197361620 is 261637912704.

It is a self number, because there is not a number n which added to its sum of digits gives 4072197361620.

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 15 ways as a sum of consecutive naturals, for example, 6051769 + ... + 6690911.

It is an arithmetic number, because the mean of its divisors is an integer number (237547454760).

Almost surely, 2^{4072197361620} is an apocalyptic number.

It is an amenable number.

4072197361620 is an abundant number, since it is smaller than the sum of its proper divisors (7330080466860).

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

4072197361620 is a wasteful number, since it uses less digits than its factorization.

4072197361620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 745344 (or 745342 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 48.

The spelling of 4072197361620 in words is "four trillion, seventy-two billion, one hundred ninety-seven million, three hundred sixty-one thousand, six hundred twenty".