3855533745551 has 2 divisors, whose sum is σ = 3855533745552. Its totient is φ = 3855533745550.

The previous prime is 3855533745421. The next prime is 3855533745571. The reversal of 3855533745551 is 1555473355583.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3855533745551 - 2¹⁴ = 3855533729167 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3855533745571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1927766872775 + 1927766872776.

It is an arithmetic number, because the mean of its divisors is an integer number (1927766872776).

Almost surely, 2^{3855533745551} is an apocalyptic number.

3855533745551 is a deficient number, since it is larger than the sum of its proper divisors (1).

3855533745551 is an equidigital number, since it uses as much as digits as its factorization.

3855533745551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 94500000, while the sum is 59.

The spelling of 3855533745551 in words is "three trillion, eight hundred fifty-five billion, five hundred thirty-three million, seven hundred forty-five thousand, five hundred fifty-one".