3855533746049 has 4 divisors (see below), whose sum is σ = 3856217235780. Its totient is φ = 3854850256320.

The previous prime is 3855533746039. The next prime is 3855533746063. The reversal of 3855533746049 is 9406473355583.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3364087881025 + 491445865024 = 1834145^2 + 701032^2 .

It is a cyclic number.

It is not a de Polignac number, because 3855533746049 - 2¹² = 3855533741953 is a prime.

It is a super-2 number, since 2×3855533746049² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3855533745982 and 3855533746000.

It is not an unprimeable number, because it can be changed into a prime (3855533746039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 341736404 + ... + 341747685.

It is an arithmetic number, because the mean of its divisors is an integer number (964054308945).

Almost surely, 2^{3855533746049} is an apocalyptic number.

It is an amenable number.

3855533746049 is a deficient number, since it is larger than the sum of its proper divisors (683489731).

3855533746049 is an equidigital number, since it uses as much as digits as its factorization.

3855533746049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683489730.

The product of its (nonzero) digits is 163296000, while the sum is 62.

The spelling of 3855533746049 in words is "three trillion, eight hundred fifty-five billion, five hundred thirty-three million, seven hundred forty-six thousand, forty-nine".