4066519838381 has 16 divisors (see below), whose sum is σ = 5459942721408. Its totient is φ = 2924969313600.

The previous prime is 4066519838341. The next prime is 4066519838387. The reversal of 4066519838381 is 1838389156604.

It is a cyclic number.

It is not a de Polignac number, because 4066519838381 - 2⁶ = 4066519838317 is a prime.

It is a super-2 number, since 2×4066519838381² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4066519838387) 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, 2031227690 + ... + 2031229691.

It is an arithmetic number, because the mean of its divisors is an integer number (341246420088).

Almost surely, 2^{4066519838381} is an apocalyptic number.

It is an amenable number.

4066519838381 is a deficient number, since it is larger than the sum of its proper divisors (1393422883027).

4066519838381 is a wasteful number, since it uses less digits than its factorization.

4066519838381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4062457412.

The product of its (nonzero) digits is 29859840, while the sum is 62.

The spelling of 4066519838381 in words is "four trillion, sixty-six billion, five hundred nineteen million, eight hundred thirty-eight thousand, three hundred eighty-one".