3780232841621 has 16 divisors (see below), whose sum is σ = 3911642273280. Its totient is φ = 3649425848640.

The previous prime is 3780232841599. The next prime is 3780232841641. The reversal of 3780232841621 is 1261482320873.

It is a cyclic number.

It is not a de Polignac number, because 3780232841621 - 2²² = 3780228647317 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 (3780232841641) 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, 21134255 + ... + 21312371.

It is an arithmetic number, because the mean of its divisors is an integer number (244477642080).

Almost surely, 2^{3780232841621} is an apocalyptic number.

3780232841621 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

3780232841621 is a deficient number, since it is larger than the sum of its proper divisors (131409431659).

3780232841621 is a wasteful number, since it uses less digits than its factorization.

3780232841621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179804.

The product of its (nonzero) digits is 774144, while the sum is 47.

The spelling of 3780232841621 in words is "three trillion, seven hundred eighty billion, two hundred thirty-two million, eight hundred forty-one thousand, six hundred twenty-one".