3857204740620 has 384 divisors, whose sum is σ = 14062325760000. Its totient is φ = 766009221120.

The previous prime is 3857204740579. The next prime is 3857204740621. The reversal of 3857204740620 is 260474027583.

It is a super-2 number, since 2×3857204740620² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3857204740620.

It is not an unprimeable number, because it can be changed into a prime (3857204740621) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 132704209 + ... + 132733271.

It is an arithmetic number, because the mean of its divisors is an integer number (36620640000).

Almost surely, 2^{3857204740620} is an apocalyptic number.

3857204740620 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3857204740620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7031162880000).

3857204740620 is an abundant number, since it is smaller than the sum of its proper divisors (10205121019380).

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

3857204740620 is a wasteful number, since it uses less digits than its factorization.

3857204740620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30365 (or 30363 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 48.

The spelling of 3857204740620 in words is "three trillion, eight hundred fifty-seven billion, two hundred four million, seven hundred forty thousand, six hundred twenty".